Hi all Recently, i decided to upgrade my operating system from Windows XP to Windows 7. Everything is working fine, apart from my surround sound. I have the Logitech X-530 speakers and Realtek HD Audio. For some unknowen reason. Only 2 of my speakers and my sub are working. No matter how i set everything up, i cannot get all of the speakers to work. They all worked perfectly fine in Windows XP. Everything in Windows and in the Sound Drivers is set up for 5.1. I can get all my speakers working if i turn on Speaker Fill in my drivers, but that does not sound very good and i didnt have to do that in XP. Why can i not get my surround sound working properly in Windows 7? Does anyone else have this issue? BTW, i have tried using diferent drivers for my sound chip including the latest ones for Windows 7 but nothing works.