Hi i Have a sound blaster live card. and altec lansing ADA745 4.1 speaker system. I recently reformatted my pc updated my drivers including sb live ,and since then I have not been able to configure my system to play sound in my rear speakers. I have set the speaker configuration in control panel to quad speaker (there is no 4.1 option) and in the creative audio HQ setup i have ticked the synchronize with control panel option, but it still will not give me an option other than 2/2.1 speaker set up. i have also noticed when i change the speaker setup in windows control panel it reverts back to desktop speakers when rebooted. As i use my system to watch dvd's this is a real pain for me. If anyone can help me out i would be very greatful. Thanks in advance.