>Can it be memory related? Bad SIM?

No, we checked that. I got the operand error figured out, but I am still having an ODBC problem. The TableUpdate() function is returning False, but is writing the changes to the back end anyway. It only does this on certain machines. I'm able to reproduce this error on a 486DX66, a 486DX33 (both HP) and now on a 486DX100 (Blue Star) so I'm ruling out hardware now. I've checked the network connections as well.

Thanks for the reply,
Scot.