         closeDropDown(true);
     }
     
+    /**
+     *  @private
+     *  Debounce the mouse
+     */
+    mx_internal function systemManager_mouseUpHandler_noRollOverOpenDelay(event:Event):void
+    {
+        // stop here if mouse was down from being down on the open button
+        if (mouseIsDown)
+        {
+            mouseIsDown = false;
+            return;
+        }
+    }
+
     /**
      *  @private
      *  Called when the dropdown is popped up from a rollover and the mouse is released 

        super();
    }
    
    //--------------------------------------------------------------------------
    //
    //  Properties

                        return;
                }
            }

            closeDropDown(true);
        } 
    }
