[H] USB keyboard problem

[Thane Sherrington]

I've got a computer that boots up to XP and immediately comes up with 
the found new hardware wizard.  The problem is that it has a USB 
keyboard and mouse, and these don't work, and the drivers for these 
won't install because they are blocked by the found new hardware 
wizard that is for some other device (as far as I can tell.)  There 
are no PS2 ports, so I can't use that - any ideas?

T