> Thanks Helen.
>
> The problem seems to happen when you return to the application after
> switching to another task or if the application has been idle for a
> period of time. The error message is sitting there when the screen
> appears. And it happens on stand alone machines as well as when
> using a server. I have never seen it happen when actively using the
> application.
>
> The app has a timer that refreshes the data displayed in a grid
> every minute in case someone adds a new record but this doesn't seem
> to be the cause. I put a try - except around the refresh but it
> doesn't trap the error.
>
> If I knew what the error message means it might point me in the
> right direction.
>
> Regards
>
> Bob

BTW - it appears from all my testing that it is not a fatal error. It
doesn't appear to create any strange behaviour on the app - my last resort
will be just swallow it but I still need to find exactly which exception to
swallow.
Alan