Scott,
Looking at the framework again, I'm seeing that some of this code is also in the calling form's framework methods (e.g. DeActivate()) so I would suggest checking that form's methods as well.

Just before opening your modal form, you might also try adding a breakpoint in your debugger for when _Screen.Lockscreen value changes.
---J

>Jason,
>
>I've checked a little deeper and I just don't see it. The weird thing about it is that if I just close the form on top, the calling form is fine. NO overlays remain. However, if I move the top window at all, it leaves the "mouse tail" type of images behind on the calling form? This is really strange. I have seen this before in the MM framework and I just can't remember what I did to get rid of it???
>
>Thanks for you input...I appreciate it!
>
>Scott