I recently upgraded from XP to Vista Ultimate 64bit, and I only get 2.1ch sound output in my games & music. If I do the sound test in vista, all the speakers work. I have changed all settings to 5.1ch. If I play music through Power DVD I get sound from all the speakers, but not from Winamp & Media Player. I have the latest drivers (v2.23) for my Razer AC-1 Sound Card. I am using Creative Inspire T6060 5.1ch speakers. Any help will be much appreciated!