>Actually, the problem with PEM Editor and the debugger really has to do with the trace window in the debugger. PEM editor is just a form with a timer, actually, and the performance for any form degrades if you have the trace window open. That can't be helped (and, believe me, we've spent some time trying).

Just a thought here -- if the trace window is the culprit for the slowness of the form, could the trace window be closed automatically on the activate event method and then reopened (if closed) on the deactivate event method of the PEM Editor form?