diff --git a/Ample/Base.lproj/LaunchWindow.xib b/Ample/Base.lproj/LaunchWindow.xib
index 85d7521..d764a9f 100644
--- a/Ample/Base.lproj/LaunchWindow.xib
+++ b/Ample/Base.lproj/LaunchWindow.xib
@@ -159,10 +159,21 @@
                                                 <font key="font" metaFont="menu"/>
                                                 <menu key="menu" id="m4N-Qw-mem">
                                                     <items>
-                                                        <menuItem title="Full Screen" state="on" id="0zZ-Ib-Fne"/>
-                                                        <menuItem title="Window 1x" id="3bZ-rq-fCt"/>
-                                                        <menuItem title="Window 2x" id="KA4-Rs-yyK"/>
-                                                        <menuItem title="Window 3x" id="Dbh-Js-pMx" userLabel="Window 3x"/>
+                                                        <menuItem title="Full Screen" state="on" id="0zZ-Ib-Fne">
+                                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                                        </menuItem>
+                                                        <menuItem title="Window 1x" id="3bZ-rq-fCt">
+                                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                                        </menuItem>
+                                                        <menuItem title="Window 2x" id="KA4-Rs-yyK">
+                                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                                        </menuItem>
+                                                        <menuItem title="Window 3x" id="Dbh-Js-pMx" userLabel="Window 3x">
+                                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                                        </menuItem>
+                                                        <menuItem title="Window 4x" id="GCs-En-3Jv">
+                                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                                        </menuItem>
                                                     </items>
                                                 </menu>
                                             </popUpButtonCell>
diff --git a/Ample/LaunchWindowController.m b/Ample/LaunchWindowController.m
index 8f8ddde..e83e66d 100644
--- a/Ample/LaunchWindowController.m
+++ b/Ample/LaunchWindowController.m
@@ -25,6 +25,20 @@ static NSString *kMyContext = @"kMyContext";
 static NSString *kContextMachine = @"kContextMachine";
 
 
+static NSString *NeedsAspectRatio(NSString *machine) {
+    static NSDictionary *dict = nil;
+    
+    if (!dict) {
+        dict = @{
+            @"oric1": @"2:1",
+            @"orica": @"2:1",
+            @"prav8d": @"2:1",
+            @"telstrat": @"2:1",
+        };
+    }
+    return [dict objectForKey: machine];
+}
+
 @interface LaunchWindowController () {
     BOOL _loadingBookmark;
     NSString *_machine;
@@ -500,6 +514,7 @@ static NSString *ShellQuote(NSString *s) {
             // drop through.
         case 2: // 2x
         case 3: // 3x
+        case 4: // 4x
             
             if (_mameSquarePixels) {
                 //              NSString *aspect = [NSString stringWithFormat: @"%u:%u", (unsigned)screen.width, (unsigned)screen.height];
@@ -509,6 +524,8 @@ static NSString *ShellQuote(NSString *s) {
                 float hscale = round((screen.width * 3 / 4) / screen.height);
                 if (hscale < 1) hscale = 1;
                 screen.height *= hscale;
+
+
             } else {
                 screen.height = round(screen.width * 3 / 4);
             }
@@ -523,12 +540,20 @@ static NSString *ShellQuote(NSString *s) {
             [argv addObject: res];
             if (_mameSquarePixels) {
                 [argv addObject: @"-nounevenstretch"];
+
+                NSString *aspect = NeedsAspectRatio(_machine);
+                if (aspect) {
+                    [argv addObject: @"-aspect"];
+                    [argv addObject: aspect];
+                }
+
             }
             break;
     }
 
 
 
+
     if (_mameBGFX) {
         [argv addObject: @"-video"];
         [argv addObject: @"bgfx"];