Hello all, I have tried the onboard Supreme FX, an X-Fi Audigy, and an Auzentech X-Fi in my board, and all have horrendous static and stuttering going on. System is: Q6600 o/c to 3.0Ghz, 8Gb ram, Terratec Cinergy 2400 tv card, Ati HD3870, and an Ageia PhysX card. OS is Vista Home Premium 64bit, all patched to most recent. (bios not current- can't figure out how to flash it in Vista 64) Speakers are Logitech Z580's over an optical connection, which works flawlessly on my other PC- Win XP64 - I am thinking of a clean reinstall, but can anyone offer any other advice? Thinking back, things may have gotten worse after installing the HD3870, but I have no definite point that I can say that's when things went south. TIA, Carl