Paul Borowicz pointed me at the following resources, I thought they were mighty useful at the time! :-)

Take a look at the following Knowledge Base articles:

PRB: Erroneous Error When Repeatedly Opening Database
http://support.microsoft.com/support/kb/articles/q200/0/25.asp

BUG: Meaningless or Undocumented Errors in Visual FoxPro 6.0
http://support.microsoft.com/support/kb/articles/q191/5/91.asp


>I'm running a telephony app using Artisoft controls, and occasionally when the app starts up, I get the following error: ** this file is incompatible with the current verion of visual foxpro. run '30update.prg' to update the file to the current version **
>
>I have no idea what the file is that is being referred to, or what kind of incompatibility exists. Any ideas?