Hi,
Sounds like you have a dangling object that is still being referenced, there was a utility in the downloads section that checks for this. Search for "objref"

>I am having major locking issues with a form that has an OleControl on it. The form is modeless and randomly locks the system so that I can't access the form or the main application. I can't even minimize or exit the program when this happens. To unlock it, I need to go to another application and then return to our main application and it seems to clear the problem.
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>Has anyone run into a similar situation? The activeX control was developed in Delphi.
>
>Thanks,
>
>Jeff