xp pro and usb conflict

[El]

I recently bought a Dell PC with XP Home pre-installed.
It was working ok, although I had a few spasmodic problems with some USB
devices.

I then upgraded to XP Pro using a disk from my Uni (Campus Licence, etc).
The install went ok until I downloaded and installed Service Pack 1.
When I re-booted, none of my USB devices were recognised.

Has anyone come across this before?
And more importantly has anyone seen any reason for/solution to this?
I've tried Microsoft support site but with no success.

Any help would be gratefully received.

Thanks

Mark

[Edward W. Thompson]

Going to Device Manager and deleting all USB devices and rebooting oten will
solve the problem. WINXP will reload all USB drivers with the latest SP1
updates.


"El" > wrote in message
...
> I recently bought a Dell PC with XP Home pre-installed.
> It was working ok, although I had a few spasmodic problems with some USB
> devices.
>
> I then upgraded to XP Pro using a disk from my Uni (Campus Licence, etc).
> The install went ok until I downloaded and installed Service Pack 1.
> When I re-booted, none of my USB devices were recognised.
>
> Has anyone come across this before?
> And more importantly has anyone seen any reason for/solution to this?
> I've tried Microsoft support site but with no success.
>
> Any help would be gratefully received.
>
> Thanks
>
> Mark
>
>