After several days' effort I have installed a cut-down version of XP Home Edition from USB. On reinstating the drivers, I have got as far as graphics and audio, and now no further drivers will initialise correctly.
I installed loads of drivers at once and put off restarting the PC until I'd finished; I'm guessing that's not the best way to do it!
Is there a way for me to remove all installed drivers and start again (following the proper install order this time)? I really don't want to go through installing XP again - this install of XP is for just a few Windows-centric tasks I can't do in Ubuntu, which I intend to install for day-to-day use.