If you have two (or more) VFP sessions active on your machine, make sure NOT to open the same form or class more than once. If you edit something in one session, the other session won't see the change. When you then Save, things can go really bad. The net result will in some cases be that all the PEMs end up empty. I have experienced this myself, and I think I saw it documented by one of the gurus.

>VFP 9
>I just lost a day's work when all methods in a large class library went blank.
>I have a back up from yesterday but all of today's intense work is gone.
>Every method in the class library is there but with no code.
>Arggggh!
>Any ideas before I start over?