Cannot run user defined procedures. DE8 locks up and has to be shut down with ctrl-alt-del.

Hi. There is no systemic failure that prevent you from running user defined procedures. If it hangs or GPF it is most likely a corruption in your DATA.

It is impossible to diagnose or help with a general request like this and one will only get general replies.

A problem need to be specific and well explained so other users can replicate the problem or even better with a sample to explain the problem you have.

We are using the Data files on my laptop and it works fine.

Is this a copy of the application that doesn't work on your system after it failed or from before it failed.

I would suggest that you reverse the process and copy the files from your laptop onto your system and sees if it works then. The corruption is like crashing a car, the damage is only there after the crash.