My girlfriend has a Logitech ClearChat Style headset. I recently gave her a Dell E6500 with onboard IDT High Def. Drivers and Windows Vista Business 64. The microphone rarely works (or properly discovered) and when it does it's choppy. It almost ALWAYS fails when Skype is loaded after it's been working fine using Steam voice and Vent. It works fine on her old XP-based 32-bit system. I've tried updated audio device drivers from the Dell website (9/29/2008 release), unplugging/replugging. Restarting the computer with the device plugged in (and unplugged another time). I can get it to work occasionally, but having to go into Crossloop every time I want to voice chat with her is getting redonkulous. Any help here would be phenomical (yes... that's a made up word).