Need Help...Plantronics DSP-500

[Temperfied]

I own the Counter-Strike DSP-500's.

They worked fine last night, (AND just now upstairs on my other PC). When I hear anything with them on this PC, it sounds all robotic. I have tried different usb ports, ect...no go.

Any Suggestions?

I am running Windows XP 64bit

 

[Temperfied]

I know PerSono doesn't fully work with XP64bit, but my headphones worked before and after I installed that. I just don't understand how it worked fine last night, and now it sounds all robotic. All that changed was I plugged in my DeathAdder, but Everything else that is USB works fine. The only thing not functioning properly is my headset.