diff --git a/AppKit/CPMenu/_CPMenuBarWindow.j b/AppKit/CPMenu/_CPMenuBarWindow.j
index 60cc01b72..bd6c781fe 100644
--- a/AppKit/CPMenu/_CPMenuBarWindow.j
+++ b/AppKit/CPMenu/_CPMenuBarWindow.j
@@ -67,6 +67,8 @@
 
     if (self)
     {
+        _constrainsToUsableScreen = NO;
+
         [self setLevel:CPMainMenuWindowLevel];
         [self setAutoresizingMask:CPWindowWidthSizable];
 
diff --git a/AppKit/CPMenu/_CPMenuWindow.j b/AppKit/CPMenu/_CPMenuWindow.j
index ddd697051..3b5fad84f 100644
--- a/AppKit/CPMenu/_CPMenuWindow.j
+++ b/AppKit/CPMenu/_CPMenuWindow.j
@@ -87,6 +87,8 @@ _CPMenuWindowAttachedMenuBackgroundStyle    = 2;
 
     if (self)
     {
+        _constrainsToUsableScreen = NO;
+
         [self setLevel:CPPopUpMenuWindowLevel];
         [self setHasShadow:YES];
         [self setShadowStyle:CPMenuWindowShadowStyle];
diff --git a/AppKit/CPWindow/CPWindow.j b/AppKit/CPWindow/CPWindow.j
index c3f0572b5..2980d8958 100644
--- a/AppKit/CPWindow/CPWindow.j
+++ b/AppKit/CPWindow/CPWindow.j
@@ -144,6 +144,7 @@ var CPWindowActionMessageKeys = [
     BOOL                                _hasShadow;
     BOOL                                _isMovableByWindowBackground;
     BOOL                                _isMovable;
+    BOOL                                _constrainsToUsableScreen;
     unsigned                            _shadowStyle;
     BOOL                                _showsResizeIndicator;
 
@@ -253,6 +254,7 @@ CPTexturedBackgroundWindowMask
         var windowViewClass = [[self class] _windowViewClassForStyleMask:aStyleMask];
 
         _frame = [windowViewClass frameRectForContentRect:aContentRect];
+        _constrainsToUsableScreen = YES;
 
         [self _setSharesChromeWithPlatformWindow:![CPPlatform isBrowser]];
 
@@ -729,6 +731,9 @@ CPTexturedBackgroundWindowMask
 
 - (CGRect)_pinFrame:(CGRect)aFrame toUsableScreenWidth:(BOOL)pinWidth andHeight:(BOOL)pinHeight
 {
+    if (!_constrainsToUsableScreen)
+        return CGRectMakeCopy(aFrame);
+
     var usableRect = [_platformWindow usableContentFrame],
         frame = _CGRectMakeCopy(aFrame);
 
diff --git a/AppKit/_CPAutocompleteMenu.j b/AppKit/_CPAutocompleteMenu.j
index ed9b4a8bc..165d34c79 100644
--- a/AppKit/_CPAutocompleteMenu.j
+++ b/AppKit/_CPAutocompleteMenu.j
@@ -270,6 +270,14 @@ var _CPAutocompleteMenuMaximumHeight = 307;
 
 @implementation _CPAutocompleteWindow : CPPanel
 
+- (id)initWithContentRect:(CGRect)aContentRect styleMask:(unsigned int)aStyleMask
+{
+    if (self = [super initWithContentRect:aContentRect styleMask:aStyleMask])
+        _constrainsToUsableScreen = NO;
+
+    return self;
+}
+
 - (BOOL)becomesKeyOnlyIfNeeded
 {
     return YES;
diff --git a/AppKit/_CPPopUpList.j b/AppKit/_CPPopUpList.j
index 024bc291a..2dfbce85e 100644
--- a/AppKit/_CPPopUpList.j
+++ b/AppKit/_CPPopUpList.j
@@ -852,6 +852,14 @@ var _CPPopUpListDataSourceKey   = @"_CPPopUpListDataSourceKey",
 
 @implementation _CPPopUpPanel : CPPanel
 
+- (id)initWithContentRect:(CGRect)aContentRect styleMask:(unsigned int)aStyleMask
+{
+    if (self = [super initWithContentRect:aContentRect styleMask:aStyleMask])
+        _constrainsToUsableScreen = NO;
+
+    return self;
+}
+
 - (void)sendEvent:(CPEvent)anEvent
 {
     var type = [anEvent type];
diff --git a/AppKit/_CPToolTip.j b/AppKit/_CPToolTip.j
index 4f271cc0e..a669d4cf0 100644
--- a/AppKit/_CPToolTip.j
+++ b/AppKit/_CPToolTip.j
@@ -167,6 +167,8 @@ var _CPToolTipHeight = 24.0,
 
     if (self = [super initWithContentRect:toolTipFrame styleMask:aStyleMask])
     {
+        _constrainsToUsableScreen = NO;
+
         textFrameSize.height += 4;
 
         _content = [CPTextField labelWithTitle:aString];