I went thru this a few weeks ago with a vectra - my solution - try a different
modem.  I was working with a Best Data hsf modem and nothing would work.

Bill Craven wrote:

> I am building 2 PCs from bits for friends. Both are working fine with
> a clean Win98. They are a Compaq Deskpro and an HP Vectra. Both
> computers display almost identical 'faults' that I believe I am doing
> something wrong and it's not the technology that's at fault.
> I am attempting to put HSF V90 'bog standard' soft modems into them
> but neither of them will detect them by PnP. Manual install refuses to
> install it on the existing two ports (1 & 2) and I have tried installing
> another
> com port but windows is unable to open it when I shift the modem onto it..
> I must be doing something wrong or missing something. Can anyone help
> please? e.g. I currently have the modem on com 4 (the option given to me
> during  installation.) but com 4 doesn't appear when I look in Control
> Panel/system/Device Manager which was the option given to me during
> installation.  How do I enable this port please? All drivers are loaded ok
> and Diagnostics show healthy modems.
>
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