I am getting C5 and/or GPF at least 3 times a week editing classes in VFP 6 SP3. Mainly when I am saving, or transferring classes from one library to another. It is very frustrating. I know the problem to be machine independant as I get it on my pIII 450, on a Cyrix 333 and another programmer locally gets it on his AMD 600. When I am doing heavy class manipulation, I have had the situation where I need to save avter very minor changes (like every 5 minutes) because the error appeared every 5 or 10 minutes.

I cannot reproduce the error.

Still, I like VFP 6 and would not go back to 5

HTH
C.R.