Upgrade XP Home to Pro and lose COM ports

Hi,
I have a Satellite P10 which was running XP Home. I upgraded it to XP Pro
(all went surprisingly smoothly) and then I tried to use the modem which
terminates with "Error 633 The modem or other connecting device is already
in use or not configures properly). "More info" tells me that "the COM port
that the connection attempted to us is already in use by another active
network connection or active processs . . . . ." but there are no other
processes using the com port (that I know of) and a Virus scan comes up
clean. I try pointing the modem at other COM ports but the asnwer is always
the same

Then, poking around in Device Manager I find there are no COM ports listed
(under Ports, COM and LPT) - which would certainly account for the modem
(which claims to be hooked to COM3) finding the port occupied

I notice I have, under "other devices" a Network Controller listed. Now that
is also odd because the network card is installed and running (and visible
under Network Adapters) just fine as is the Belkin Wireless PCMCIA card.
Anway I let Windows search for drivers and it fails miserably.

So there are two issues
1) How do I get my com ports back
2) What is this weird network controller card?
3) Are these problems related.

Thanks for any information






.

Relevant Pages

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    ... I upgraded it to XP Pro and then I tried to use the modem which terminates with "Error 633 The modem or other connecting device is already in use or not configures properly). ... Then, poking around in Device Manager I find there are no COM ports listed - which would certainly account for the modem finding the port occupied ... under "other devices" a Network Controller listed. ... Now that is also odd because the network card is installed and running just fine as is the Belkin Wireless PCMCIA card. ...
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