diff --git a/AppKit/CPControl.j b/AppKit/CPControl.j
index 5af7d9b63..37ba2421a 100644
--- a/AppKit/CPControl.j
+++ b/AppKit/CPControl.j
@@ -286,9 +286,14 @@ var CPControlBlackColor     = [CPColor blackColor];
         [self stopTracking:_previousTrackingLocation at:currentLocation mouseIsUp:YES];
 
         _trackingMouseDownFlags = 0;
+
+        if (isWithinFrame)
+            [self setThemeState:CPThemeStateHovered];
     }
     else
     {
+        [self unsetThemeState:CPThemeStateHovered];
+
         if (type === CPLeftMouseDown)
         {
             _trackingMouseDownFlags = [anEvent modifierFlags];
@@ -384,6 +389,25 @@ var CPControlBlackColor     = [CPColor blackColor];
     [self trackMouse:anEvent];
 }
 
+- (void)mouseEntered:(CPEvent)anEvent
+{
+    if (![self isEnabled])
+        return;
+
+    [self setThemeState:CPThemeStateHovered];
+}
+
+- (void)mouseExited:(CPEvent)anEvent
+{
+    var currentLocation = [self convertPoint:[anEvent locationInWindow] fromView:nil],
+        isWithinFrame = [self tracksMouseOutsideOfFrame] || CGRectContainsPoint([self bounds], currentLocation);
+
+    // Make sure we're not still in the frame because Cappuccino will sent mouseExited events
+    // for all of the (ephemeral) subviews of a view as well.
+    if (!isWithinFrame)
+        [self unsetThemeState:CPThemeStateHovered];
+}
+
 /*!
     Returns the receiver's object value
 */
diff --git a/AppKit/CPTheme.j b/AppKit/CPTheme.j
index 7e854b147..ff37bee69 100644
--- a/AppKit/CPTheme.j
+++ b/AppKit/CPTheme.j
@@ -405,6 +405,7 @@ function CPThemeStateName(aState)
 CPThemeStateNames[0]        = "normal";
 CPThemeStateNormal          = CPThemeStates["normal"] = 0;
 CPThemeStateDisabled        = CPThemeState("disabled");
+CPThemeStateHovered         = CPThemeState("hovered");
 CPThemeStateHighlighted     = CPThemeState("highlighted");
 CPThemeStateSelected        = CPThemeState("selected");
 CPThemeStateTableDataView   = CPThemeState("tableDataView");
diff --git a/AppKit/CPWindow/CPWindow.j b/AppKit/CPWindow/CPWindow.j
index 032b19382..a0b6f51c9 100644
--- a/AppKit/CPWindow/CPWindow.j
+++ b/AppKit/CPWindow/CPWindow.j
@@ -388,6 +388,7 @@ CPTexturedBackgroundWindowMask
         _registeredDraggedTypes = [CPSet set];
         _registeredDraggedTypesArray = [];
         _isSheet = NO;
+        _acceptsMouseMovedEvents = YES;
 
         // Set up our window number.
         _windowNumber = [CPApp._windows count];