Hi, In LabVIEW 7.0, mouse up event is still queued on the event structure even if the button is disabled. This is expected behavior.
The rational for the mouse up event is you can still want to know that you have a mouse up event even if the control is disabled. All disabling should do is not allow you to do a value change. On the other hand, the value changed event should check to see if the button is disabled, but not the mouse up event. Feroz National Instruments