There are several things that can cause corruption, from poorly designed applications to network problems to bad user habits. You may get some specific ideas here http://www.craigberntson.com/Articles/kb005.htm

>I have some clients complain about tables corrupt, while I didn't see much discussion regarding this issue in the forum, I'm curious if the VFP .dbf is solid enough, or should I switch to SQL back-end?
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>thanks for the help.
>
>regards,
>
>Jerry