>Nick, Could you explain something to me, as I think I am missing something so simple that I can not grasp it. If I put a set step on as the last line of code in my mousedown event, then tell the debugger to resume, I get the effect I desire?????
>
>Any Ideas why this would happen

Hmm, with the code in MouseDown traced it should work differently when you invoke the Debugger. The sequence of events is not the same, since you probably need to move a mouse or use keyboard to resume.