I needed to update my profile - I have moved from Mandrake back to Fedora 2 and now upgraded to Fedora 3.
I had no problem booting with Mandrake 10.0 (Grub) or Fedora 2 (Grub) with "Legacy USB" set on in my BIOS and the keyboard and mouse on the usb port.
The problem is with Fedora 3 and now with Kernel 2.6.9-1.681_FC3.i686. I have tried different boot options in Grub 0.95 - including apic=off, apic=ht etc, but the problem persists.
In addition, in a purely console session I keep getting key not recognised messages and something about using setkey to define the keycode. It makes getting Nvidia drivers installed a pain. I'll have to learn more about this to solve it - thanks Microsoft :-(.