>What version of FP/VFP are you using? What have you noticed about when they disappear?
>
>>Sometimes all tabels and relationships between them dissappears and I dont't know why.

I'm using VFP 5.0a version.
I've noticed it when I've started to work with old forms. But it occurs sometimes. I don't know exactly when, because when you start the form and it shows that it can't find the tables. :(