I have a Plantronics Audio 325 Plug in the audio jacks I can hear but the mic doesn't work. I have a windows vista 64 bit machine. I built myself has onboard audio with SoundMax blackHawk...
Ive used control panel to see if there is something to detect but I dont think Audio Plug in's work that way. The headset is Brand new less then 24hrs old and Mic wont work. There must be some setting in here that im missing.
More aboutplantronics audio brand working
Think I might try to reinstall the audio drivers and see what happens