>Thank you George for a great summary. :-)

You're welcome

>Is it possible for a Print driver to cause a C0005 error, even if the printer service is not called upon?

I know that this is not what you're referring to, but, in one situation, yes. When you preview a report, the printer driver is called to do the visual rendering.

>My application seems to be bombing, at the clients location, while switching between pages in a pageframe. I explained to the client that this type of error could occur while she is drinking her tea.

< g >In this case, and this is a total SWAG, the only thing that comes to mind is the video driver. VFP is notorious for having problems with certain drivers. Again, it's a case of the driver not being written to spec.