Well the last option is a format and clean install - unfortunately.

Did you try uninstalling the USB hubs in Device Manager and then rebooting
the PC? XP should automatically redetect and reinstall them. Are other USB
devices working OK?
--
Cari (MS-MVP) Printing & Imaging
www.coribright.com/windows


"GEORGE" <GEORGE@discussions.microsoft.com> wrote in message
news:ED2B088B-A9B8-4B5A-993C-7C51D8EFFBE8@microsoft.com...
> I've tried this by booting from the XP cd - install windows - and using
> the
> repair option. I've also ran SFC /scannow from the command prompt.
> Nothing
> has helped. Any other suggestions?
>
> Thanks
>
> "Cari (MS-MVP)" wrote:
>
>> Repair installation of Windows XP.
>> --
>> Cari (MS-MVP) Printing & Imaging
>> www.coribright.com/windows
>>
>> "GEORGE" <GEORGE@discussions.microsoft.com> wrote in message
>> news:58687015-A51B-4D9A-9AA0-9DEB48DB682E@microsoft.com...
>> > We recently installed a Lexmark e232 laser. The installation failed
>> > with
>> > the
>> > message "unknown usb device". We called Lexmark and it was determined
>> > that
>> > the usb print service had been uninstalled - it does not show up in
>> > device
>> > manager under the usb items. We also have a network printer installed
>> > via
>> > the LAN. When we check properties for it under ports this computer no
>> > longer
>> > has the ability to assign a usb or virtual port (they don't show up in
>> > the
>> > options list. The motherboard is a new Intel board without an onboard
>> > parallel port. How do we reinstall the windows XP usb print service?
>> >
>> > Thanks
>> >
>>