I've been trying to get my PS2 USB headset to work on my PC, and so far only the microphone seems to work. Now I've already changed the settings in the control panel to ensure that audio output goes through the uSB headset but still no sound. I tried explaining it on the Logitech forums but they seem not to understand what's going on.

Any special drivers I need to ge these babies to work properly? I only got the mic working and the headphones do work on the PS2..

I don't know if this will solve your problem but this happened to me and all I had to do was turn up the volume wheel on the headset.