Knew it was too good to last

After years of having a couple of stable, reliable Windows XP installs (over two computers), my computer's reset itself after Media Player 10 having frozen a couple of times recently. I'm hoping it's something to do with the Sound Blaster X-Fi and last night I installed the latest drivers from Creative's website, so we'll see, but I'll be devastated if I get stuck with this as a persistent problem. It doesn't even give a BSOD, just freezes then eventually restarts itself, citing an 'unkown device driver' error in the report.