>>Jon,
>>
>>Stop wondering, open the debugger and run your app, when the error occurs choose Suspend and go to the debugger, it will show the exact line of code that caused the error.

---

Jim,
>Tried that :) here is the exact line of code where the form bombs
>DODEFAULT()
>THIS.PARENT.PARENT.COMBO1.SETFOCUS &&Right here
>

Jon,

Where is the above code? Have you tried commetning out the DeDefault() to see if it bombs on teh SetFocus line?