>>There may be a "dangling object" in the _mouseOverFX object. Try Robert's solution he offered AND nulling out the _mouseOverFX object: thisform._mouseOverFX1 = .NULL.
>
>
>I added thisform._mouseoverfx1=.null. and the cancelhighlight call to the destroy event of the form and got this:
>
>Error # 1737
>Program destroy
>Message _MOUSEOVERFX1 is a method, event, or object. (_MOUSEOVERFX1)
>
>:::thinking that patience is indeed a virtue:::
>
>TIA,

Let me expand on my previous post.
Ther reason this is happening to you is that the physical area used by the container of these controls is so small that, when moving the mouse off of the controls, the container's mouseover event doesn't fire. this makes using tools like the mouseovereffects class very difficult to use, because the last object highlighted will stay highlighted, and its reference intact until something clears it. If the container is in a form, you could place clearing code in the form's queryunload event, and in the release method, but for a toolbar I can't think of any events that run dependably after the mouse leaves the toolbar area.