I recently replaced my mainboard and processor. I installed my DFI Lanparty UT nf3 250gb and my new sempron 3100+ and everything went very smoothly. I have a brand new 120gb Samsung drive with a fresh install of Windows Xp. Here is my problem. The Line Out port on the back of the mainboard (onboard sound) does not function. I have resorted to plugging my speakers into the Rear R/L port and using it this way although I don't see this as ideal. Any help would be appreciated.