Hello, I recently put together a new system using a MSI K9NBPM2-FID mobo, Athlon 64 x2 5200, 2 Gb of Corsair XMS, and a Seagate 500 Gb SATA hard drive. I installed windows xp with no problem and everything worked. I then shut down the system and reconnected some old ide hard drives to transfer files that I wanted from the old system. After the transfer was complete, I shut down the pc and removed the old hard drives. I powered back up and there was no sound. I have checked in BIOS, tried uninstalling/reinstalling the drivers and audio devices/codecs, and tried reinstalling windows twice. I have also tried plugging the stereo into a different device to make sure it wasn't the stereo. Does anybody have any ideas if there is anything else that is fixable or is it most likely that the audio hardware failed after 1 day? Thank you for any suggestions or help.