I've just built a new system. I want to dualboot with Win XP and Ubuntu.
So I've just installed Win XP (I haven't installed ubuntu yet), and my mouse doesn't work. I have tried two mice, and no one works (they're both USB).
Then I noticed in SETUP, under Integrated Peripherals, an option: "USB mouse support", that was disabled.
I enabled it, but the mouse still doesn't work.
Every other USB device works (keyboard, USB storage devices etc.)