Sound Problem (?)

I recently purchased a new headset (SteelSeries 3H USB) and I installed it all fine. Sounded great with CF and all. Only problem is it seemed to stop working with CF ever since the christmas update. No sound at all. I've tried reinstalling the driver. Worked one night then went back bad again. I get sound on any other game/program except CF.

Any help will be greatly appreciated.

Microsoft Windows XP
Media Center Edition (nightmare rite?)
Version 2002 SP 2

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