>I think I need to try event tracking. The problem is where to put it and would it really help? I know there is a lot going on from the framework side...

OTOH,

if you add a breakpoint instead of the msgbox in the object called twice, you can just view each stacklevels current code - could be enough, since you aren't tracing the code. Perhaps best practice would be to call an external prg whose actions (might still be the MsgBox) you could change on a whim.

regards