BR-> I had comm.drv, when the problem first started. I went to the other one
  -> to try to solve it. There don't seem to be many high-speed comm drivers
  -> for Windows for Workgroups 3.11.
BR-> How can I find out whether or not Windows has enabled the 16550A UART
  -> buffer that I have, Fred? I thought the UART did that itself?
        Does this only happen with Z-Modem, or have you tried using
        Y-Modem yet? Seems I read somewhere that you couldn't use
        Z-Modem without an error correcting modem. Don't recall what
        brand you said your modem is.
        ->Bob<-
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 * QMPro 1.53 * ... Everyone hates me because I'm paranoid.
--- WILDMAIL!/WC v4.12 
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