>I have a VFP 5.0 compiled app that runs on a NetWare 3.11 network with a Win95 client. The users are getting an 'Error writing to file' error when the code is trying to GATHER MEMVAR or APPEND BLANK. The table is not corrupted (I can open it in VFP with no problem). I've looked at all the obvious things: users access rights on the server, file attributes, available disk space, exclusive use. There seems to be no rhyme or reason. AND this error is intermittent, so I can't always duplicate it.
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>Help! Any suggestions?

Agreeing with Mark, this is definitely a network problem. "Error writing to file" is the type of error a users gets when the OS or network releases his handle on the file.