I posted a question about this a week or so ago, and got no reply , so I am going to try again. I have an application which I have been writing for a client. This application works fine when compiled and run on computers in my office. When I installed it on his system, it also worked fine for a while, but then all of a sudden for no reason I can find, it started giving me an "Invalid buffdirty call" error. This error doesn't seem to be generated by windows, but still bypasses my error handling routine. Has anyone seen anything like this?

Here's hoping,
Paul