diff --git a/MRIcroGL.app/Contents/Resources/script/a1.gls b/MRIcroGL.app/Contents/Resources/script/a1.gls
index 8c74104..7107c5d 100644
--- a/MRIcroGL.app/Contents/Resources/script/a1.gls
+++ b/MRIcroGL.app/Contents/Resources/script/a1.gls
@@ -1,14 +1,14 @@
 begin
-	//savenii('disco.nii',-1,0.5);
-	//resetdefaults;
-	//loadimage('mni152_2009bet');
-	loadimage('a');
-	//loadimage('motor');
+
+	resetdefaults;
+
+
+	backcolor(255, 255, 255);
+loadimage('mni152_2009bet');
 	overlayload('motor');
-	overlayminmax(1, 2, 2);
-	overlaylayertransparencyonbackground(1,-2);
-	overlayload('motor');
-	overlayminmax(2, -3, -4);
-	overlaylayertransparencyonbackground(2, 80);
-	orthoviewmm(0, 0, 57);
+overlaymaskedbybackground(false);
+    	overlayminmax(1, 2.6, 4);
+
+	orthoviewmm(0, 0, 50);
+
 end.
diff --git a/define_types.pas b/define_types.pas
index 66f191c..8f29dc9 100755
--- a/define_types.pas
+++ b/define_types.pas
@@ -12,7 +12,7 @@ interface
         SysUtils,classes,graphics,userdir,math,
         {$IFDEF GUI} forms,dialogs,controls;{$ELSE} dialogsx;{$ENDIF}
 const
-  kVers = 'v1.0.20180622';
+  kVers = 'v1.0.20180623';
      NaN : double = 1/0;
      kMagicDouble : double = -111666222;
      kTxtFilter = 'Text (*.txt)|*.txt;*.csv|Comma Separated (*.csv)|*.csv';
diff --git a/mainunit.lfm b/mainunit.lfm
index cec42d2..616cd4c 100755
--- a/mainunit.lfm
+++ b/mainunit.lfm
@@ -1,5 +1,5 @@
 object GLForm1: TGLForm1
-  Left = 489
+  Left = 472
   Height = 654
   Top = 124
   Width = 968
diff --git a/mainunit.pas b/mainunit.pas
index ed69f4d..d221552 100755
--- a/mainunit.pas
+++ b/mainunit.pas
@@ -5685,7 +5685,7 @@ procedure AlphaBlend32Final(lBGQuad,lOverlayQuad : RGBQuadp; lBG0Clr,lOverlay0Cl
          inc(J);
          lBGp^[J] := round(lWtBG*lBGp^[J]   +lWtOver*lOverlayP^[J]);
          inc(J);
-         //lBGp^[J] := max(lBGp^[J], lOverlayP^[J]); //alpha on background
+         lBGp^[J] := max(lBGp^[J], lOverlayP^[J]); //alpha on background
          inc(J);
  end;
 end;
@@ -5709,7 +5709,7 @@ procedure AlphaAdditive32Final(lBGQuad,lOverlayQuad : RGBQuadp; lBG0Clr,lOverlay
    inc(J);
    lBGp^[J] := max(lBGp^[J], lOverlayP^[J]);
    inc(J);
-   //lBGp^[J] := max(lBGp^[J], lOverlayP^[J]); //alpha on background
+   lBGp^[J] := max(lBGp^[J], lOverlayP^[J]); //alpha on background
    inc(J);
  end;
 end;
@@ -5745,7 +5745,7 @@ procedure AlphaModulate32Final(lBGQuad,lOverlayQuad : RGBQuadp; lBG0Clr,lOverlay
    inc(J);
    lBGp^[J] := round(lWt*lOverlayP^[J]);
    inc(J);
-   //lBGp^[J] := max(lBGp^[J], lOverlayP^[J]); //alpha on background
+   lBGp^[J] := max(lBGp^[J], lOverlayP^[J]); //alpha on background
    inc(J);
  end;
 end;
@@ -5779,7 +5779,7 @@ procedure ModulateBlendX;
          inc(J);
          lBGp^[J] := round(lWt*lOverlayP^[J]);
          inc(J);
-         //lBGp^[J] := max(lBGp^[J], lOverlayP^[J]); //alpha on background
+         lBGp^[J] := max(lBGp^[J], lOverlayP^[J]); //alpha on background
          inc(J);
     end;
 end; //nested ModulateBlendX
diff --git a/prefs.pas b/prefs.pas
index 754a2f1..6cdfa21 100755
--- a/prefs.pas
+++ b/prefs.pas
@@ -234,7 +234,7 @@ procedure SetDefaultPrefs (var lPrefs: TPrefs; lEverything: boolean);
     InterpolateOverlays := true;
     //InterpolateView := true;
     EnableYoke := true;
-    MaskOverlayWithBackground := true;
+    MaskOverlayWithBackground := false;//change default behaviorAugust3,2018 true;
     OverlayColorFromZero := false;
     //SurfaceThreshold := 25;
     BackgroundAlpha := 50;
diff --git a/scriptengine.pas b/scriptengine.pas
index a947fdf..885d3fc 100755
--- a/scriptengine.pas
+++ b/scriptengine.pas
@@ -1841,10 +1841,14 @@ procedure TScriptForm.InsertCommand(Sender: TObject);
   else
       lStr := lStr+TypeStr((Sender as TMenuItem).Tag)+ ';';
   Clipboard.AsText := lStr;
-  {$IFDEF UNIX}
-  Memo1.SelText := (lStr)+ UNIXeoln;
+  {$IFDEF OLD}
+    {$IFDEF UNIX}
+    Memo1.SelText := (lStr)+ UNIXeoln;
+    {$ELSE}
+    Memo1.SelText := (lStr)+ #13#10;
+    {$ENDIF}
   {$ELSE}
-  Memo1.SelText := (lStr)+ #13#10;
+  Memo1.Lines.Insert(Memo1.CaretPos.Y, lStr);
   {$ENDIF}
 end;
 
diff --git a/simplelaz.lps b/simplelaz.lps
index 4903d19..432a2a6 100644
--- a/simplelaz.lps
+++ b/simplelaz.lps
@@ -18,8 +18,8 @@
         <ComponentName Value="GLForm1"/>
         <HasResources Value="True"/>
         <ResourceBaseClass Value="Form"/>
-        <TopLine Value="3650"/>
-        <CursorPos X="3" Y="3666"/>
+        <TopLine Value="5330"/>
+        <CursorPos X="11" Y="5340"/>
         <UsageCount Value="211"/>
         <Loaded Value="True"/>
         <LoadedDesigner Value="True"/>
@@ -28,7 +28,7 @@
       <Unit2>
         <Filename Value="define_types.pas"/>
         <IsPartOfProject Value="True"/>
-        <EditorIndex Value="8"/>
+        <EditorIndex Value="9"/>
         <TopLine Value="3"/>
         <CursorPos X="46" Y="14"/>
         <UsageCount Value="215"/>
@@ -38,18 +38,19 @@
       <Unit3>
         <Filename Value="prefs.pas"/>
         <IsPartOfProject Value="True"/>
-        <EditorIndex Value="-1"/>
-        <TopLine Value="174"/>
-        <CursorPos X="16" Y="176"/>
+        <EditorIndex Value="1"/>
+        <TopLine Value="219"/>
+        <CursorPos X="39" Y="221"/>
         <UsageCount Value="201"/>
+        <Loaded Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit3>
       <Unit4>
         <Filename Value="commandsu.pas"/>
         <IsPartOfProject Value="True"/>
-        <EditorIndex Value="9"/>
-        <TopLine Value="839"/>
-        <CursorPos X="38" Y="855"/>
+        <EditorIndex Value="10"/>
+        <TopLine Value="472"/>
+        <CursorPos X="11" Y="474"/>
         <UsageCount Value="205"/>
         <Loaded Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
@@ -60,7 +61,7 @@
         <EditorIndex Value="-1"/>
         <TopLine Value="64"/>
         <CursorPos X="21" Y="71"/>
-        <UsageCount Value="174"/>
+        <UsageCount Value="176"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit5>
       <Unit6>
@@ -69,11 +70,13 @@
         <ComponentName Value="ScriptForm"/>
         <HasResources Value="True"/>
         <ResourceBaseClass Value="Form"/>
-        <EditorIndex Value="5"/>
-        <TopLine Value="1080"/>
-        <CursorPos X="51" Y="1086"/>
-        <UsageCount Value="187"/>
+        <IsVisibleTab Value="True"/>
+        <EditorIndex Value="6"/>
+        <TopLine Value="1839"/>
+        <CursorPos X="15" Y="1844"/>
+        <UsageCount Value="189"/>
         <Loaded Value="True"/>
+        <LoadedDesigner Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit6>
       <Unit7>
@@ -96,7 +99,7 @@
         <EditorIndex Value="-1"/>
         <TopLine Value="77"/>
         <CursorPos X="2" Y="96"/>
-        <UsageCount Value="147"/>
+        <UsageCount Value="149"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit8>
       <Unit9>
@@ -105,11 +108,10 @@
         <ComponentName Value="dcm2niiForm"/>
         <HasResources Value="True"/>
         <ResourceBaseClass Value="Form"/>
-        <IsVisibleTab Value="True"/>
-        <EditorIndex Value="3"/>
+        <EditorIndex Value="4"/>
         <TopLine Value="132"/>
         <CursorPos X="47" Y="150"/>
-        <UsageCount Value="28"/>
+        <UsageCount Value="30"/>
         <Loaded Value="True"/>
         <LoadedDesigner Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
@@ -124,19 +126,19 @@
       </Unit10>
       <Unit11>
         <Filename Value="nii_label.pas"/>
-        <EditorIndex Value="1"/>
+        <EditorIndex Value="2"/>
         <TopLine Value="142"/>
         <CursorPos X="46" Y="150"/>
-        <UsageCount Value="23"/>
+        <UsageCount Value="24"/>
         <Loaded Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit11>
       <Unit12>
         <Filename Value="nii_reslice.pas"/>
-        <EditorIndex Value="4"/>
-        <TopLine Value="580"/>
-        <CursorPos X="32" Y="580"/>
-        <UsageCount Value="81"/>
+        <EditorIndex Value="5"/>
+        <TopLine Value="23"/>
+        <CursorPos X="37" Y="585"/>
+        <UsageCount Value="82"/>
         <Loaded Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit12>
@@ -168,9 +170,9 @@
       </Unit15>
       <Unit16>
         <Filename Value="slices2d.pas"/>
-        <EditorIndex Value="2"/>
-        <CursorPos X="31" Y="4"/>
-        <UsageCount Value="98"/>
+        <EditorIndex Value="3"/>
+        <CursorPos X="18" Y="9"/>
+        <UsageCount Value="99"/>
         <Loaded Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit16>
@@ -234,10 +236,10 @@
       </Unit23>
       <Unit24>
         <Filename Value="nifti_hdr.pas"/>
-        <EditorIndex Value="7"/>
+        <EditorIndex Value="8"/>
         <TopLine Value="11"/>
         <CursorPos X="33" Y="18"/>
-        <UsageCount Value="19"/>
+        <UsageCount Value="20"/>
         <Loaded Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit24>
@@ -503,10 +505,10 @@
       </Unit56>
       <Unit57>
         <Filename Value="histogram2d.pas"/>
-        <EditorIndex Value="10"/>
+        <EditorIndex Value="11"/>
         <TopLine Value="23"/>
         <CursorPos X="12" Y="35"/>
-        <UsageCount Value="44"/>
+        <UsageCount Value="45"/>
         <Loaded Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit57>
@@ -569,133 +571,133 @@
       </Unit64>
       <Unit65>
         <Filename Value="uscaledpi.pas"/>
-        <EditorIndex Value="6"/>
+        <EditorIndex Value="7"/>
         <CursorPos X="78" Y="2"/>
-        <UsageCount Value="16"/>
+        <UsageCount Value="17"/>
         <Loaded Value="True"/>
         <DefaultSyntaxHighlighter Value="Delphi"/>
       </Unit65>
     </Units>
     <JumpHistory Count="30" HistoryIndex="29">
       <Position1>
-        <Filename Value="dcm2nii.pas"/>
-        <Caret Line="567" TopLine="555"/>
+        <Filename Value="commandsu.pas"/>
+        <Caret Line="443" Column="76" TopLine="441"/>
       </Position1>
       <Position2>
-        <Filename Value="dcm2nii.pas"/>
-        <Caret Line="566" TopLine="554"/>
+        <Filename Value="commandsu.pas"/>
+        <Caret Line="72" Column="36" TopLine="61"/>
       </Position2>
       <Position3>
-        <Filename Value="dcm2nii.pas"/>
-        <Caret Line="565" TopLine="553"/>
+        <Filename Value="commandsu.pas"/>
+        <Caret Line="175" Column="70" TopLine="156"/>
       </Position3>
       <Position4>
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+        <Filename Value="mainunit.pas"/>
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-        <Caret Line="563" TopLine="551"/>
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       </Position5>
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-        <Filename Value="dcm2nii.pas"/>
-        <Caret Line="562" TopLine="550"/>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="5890" Column="16" TopLine="5880"/>
       </Position6>
       <Position7>
-        <Filename Value="dcm2nii.pas"/>
-        <Caret Line="561" TopLine="549"/>
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-        <Filename Value="dcm2nii.pas"/>
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+        <Filename Value="mainunit.pas"/>
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-        <Filename Value="dcm2nii.pas"/>
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+        <Filename Value="mainunit.pas"/>
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-        <Filename Value="dcm2nii.pas"/>
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+        <Filename Value="mainunit.pas"/>
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       </Position12>
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-        <Filename Value="dcm2nii.pas"/>
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+        <Filename Value="mainunit.pas"/>
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-        <Filename Value="dcm2nii.pas"/>
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       </Position14>
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-        <Filename Value="dcm2nii.pas"/>
-        <Caret Line="490" Column="63" TopLine="479"/>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="5665" TopLine="5650"/>
       </Position15>
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-        <Filename Value="dcm2nii.pas"/>
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-        <Filename Value="dcm2nii.pas"/>
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       <Position18>
-        <Filename Value="nii_reslice.pas"/>
-        <Caret Line="538" TopLine="527"/>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="292" Column="24" TopLine="274"/>
       </Position18>
       <Position19>
-        <Filename Value="nii_reslice.pas"/>
-        <Caret Line="539" Column="41" TopLine="534"/>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="2070" Column="81" TopLine="2051"/>
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       <Position20>
-        <Filename Value="nii_reslice.pas"/>
-        <Caret Line="8" Column="11"/>
+        <Filename Value="mainunit.pas"/>
+        <Caret Line="5340" Column="11" TopLine="5330"/>
       </Position20>
       <Position21>
-        <Filename Value="nii_reslice.pas"/>
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+        <Filename Value="prefs.pas"/>
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       </Position21>
       <Position22>
-        <Filename Value="nii_reslice.pas"/>
-        <Caret Line="64" Column="18" TopLine="46"/>
+        <Filename Value="prefs.pas"/>
+        <Caret Line="42" Column="26" TopLine="30"/>
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-        <Filename Value="commandsu.pas"/>
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-        <Filename Value="commandsu.pas"/>
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-        <Filename Value="commandsu.pas"/>
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-        <Filename Value="commandsu.pas"/>
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+        <Caret Line="7" Column="92"/>
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-        <Filename Value="commandsu.pas"/>
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-        <Filename Value="dcm2nii.pas"/>
-        <Caret Line="524" Column="44" TopLine="518"/>
+        <Filename Value="scriptengine.pas"/>
+        <Caret Line="1846" TopLine="1832"/>
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     </JumpHistory>
     <RunParams>