I have recently upgraded from windows XP Home to Windows 7 Home Premium. In XP I had no problem getting all my audio to come out of my 5.1 surround speakers and all was dandy. Ever since I upgraded I have faced the issue of various applications not making use of all channels. Namely: WMP/iTunes/Windows plays audio through left and right only, not centre rear left or rear right. (This was never a problem before the upgrade to 7) Call of Duty: Modern Warfare 2 however does use all channels and I get a good gaming experience just like I did before. I have tried doing an auto driver update, only for windows to tell me the drivers are up to date. I have tried using the disk that came with my motherboard to find that it isnt supported in this version of windows. And I have played around with every combination of settings in the sound control panel to no effect. What is pretty stupid though, is that when "testing" the speaker configuration in control panel, the dinging noises all come out of the correct speakers at the correct time, so why doesnt any other sound from windows do this? There must be an answer and I'm determined not to have to buy a new sound card (and having read around it seems that even creative sound cards dont have a lot of luck with windows 7) PS in terms of my hardware, I think I have built in Realtek, however my software disk wants to install "SoundMAX" software. My Motherboard is an ASUS M3A32-MVP Deluxe.