>>>In response to Fred, yes, I did the cancelhighlight first :)
>>>
>>>Erik, I added thisform._mouseoverfx1.oCurrentCoolControl = .NULL. to the forms destroy event and got an error "Property oCurrentCoolCOntrol not found"
>>>
>>
>>how did you reference the Mouseoever object? Are you sure you have a good object reference?
>
>thisform._mouseoverfx1.oCurrentCoolControl = .NULL.
>
>ThisForm should be right...the class is called _mouseoverfx1 and the property is oCoolControl. Do I not have the reference constructed properly? The other thing I noticed is that in the property sheet for _mouseover, the oCoolControl property is set to "=NULL" rather than ".NULL" Can this make a difference?

Put a SET STEP ON in your form's destroy event, before you call the mouseoverobject. Put a watch on the object reference as you have it typed in the method. If it is a valid object reference, you should be able to drill down into its properties and members. Can you see the reference there?