>I have a button class on a form with the typical move buttons and add/edit/exit
>buttons. When debugging in runtime, I try to double click at a particular code line
>to set a breakpoint in the debugger and boom a C0000005 error message showing a call
>list with no other info. It happens every time without fail. I can set a breakpoint
>in any event/method of the form but the button class. Anyone know why?

No, but the first things I would check are that the record containing the button class is not corrupt (bad data hiding in one of the reserved fields, or bad code in the source memo) and that the FOXUSER table is not corrupt.