well problems and their solutions i've experienced with surround sound in the past
- Control Pannel Sound and Sound Card Mixer Settings not in sync - Various fixes for this, either keep resetting/checking or disable the creative in sync with control pannel (as this caused the problems for me)
- SL and SR are swapped with eachother - Simply swap inputs around on the Subwoofer
- Windows Sound Mixer Settings are not correct - Go to File ->Properties and ensure that you tick each box click apply/ok, Then return to the mixer, make sure Front, Side, Left, Right, Sub and Center are all at Full volume. (You may not have these options i didn't with my old computer)
- Per program settings - Just check to see if there are any settings in the application itself that are incorrect
But i've never experienced sound from only front L and R speakers
OH and there are surround sound mp3's but they haven't taken off
Hope you get it working Kao