tx2500z mono sound

just found out my TX has been running mono sound.

I checked the wiring and everything on the hardware end and it looks fine.

software wise, I just installed HP's driver and it still won't output in stereo.

I can deal with my laptop being quieter, but can anyone think of a fix or at least a way to balance the sound so I can hear things on my right in a games?

thanks,
- Tyler