Thanks, Jim for the reality check. I got stuck thinking tag.

Marcus, to add to what Jim said, create an actual error handler where you can check which error you've gotten and then returns, or retries, or bails out, depending on what happened. IOW, an assignment in the ON ERROR statement doesn't really count as handling the error :-)

...snip
>First the code you posted will gaurantee an error whenever the IF is true. When VFP's error handler is in effect it is ignoring the error for some reason. In your errorhandler you need to hanlde error #1707.