I have encounted this before. I was one of the first things I tried. But thanks for suggesting it.

>Maybe indexes got corrupted? I would try to reindex tables involved first.
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>>Our application has been throwing random C5 errors when the calling forms with DO FORM statements. Does anyone know what is going on when forms are called? It appears to be a memory allocation issue. Does sound right? I have reviewed the error logs generated by Foxpro when these C5 occur, and every one (33 errors, so far) has been a call to a form.