Try changing the settings from speakers to 4.1 speakers.
[-0MEGA-];1118493 said:First off, how is it configured? Are you connected via analog (green, orange, blue, black, etc.) cables, via SPDIF, etc.?
If you are connected via the traditional analog cables, double check to make sure that you have the corresponding cables plugged into the correct ports, they should be color coded. Also check your speaker system and make sure that if applicable, it's set to 4.1 mode (generally located on the rear of the subwoofer).