El oh el wow.
So after installing 7 on a dual boot, my XP sound stopped working as mentioned earlier. I went back into XP, reinstalled all the relevant drivers, no dice. Did a few System Restores, no dice. Researched via google and found people mentioning that my laptop model had problems with sound randomly dying. No fixes, though. This would sort of make sense, except sound works perfectly for me in 7. Okay, dead end.
Then I found some reports of people dual booting XP and Vista (with XP installed first) and then the sound in XP (but not Vista) randomly dropping afterwards. I thought, hrmf, maybe the same thing happened with the 7 install. This made more sense. Looked around for another four hours for fixes or patches or whatnot, still no dice. Blah.
On a whim I decide to boot off a flash drive to see if sound would work in Ubuntu. It does. Hrrrfm, I think grumpily. I boot back into XP, ready to tinker some more, and then suddenly, the sound starts working. Wut.
I'm now afraid to boot into 7 again for fear of breaking the sound again. I'm probably going to forget tomorrow and do it anyways, but seriously, wut.
一个大西瓜