I bought the logitech G35 today and I tested everything including the 7.1 surround sound, and it worked perfectly. But I noticed in game that there was no surround sound so I'd have to guess where everything was. I was still able to hear things but it wasn't clear which direction it was in. All I really have is the software to change the setting on the headset, but I'm not sure if I need to update anything so that the 7.1 works.