Sound Issues: Single Race

[ELPIRATA]

Hello all:

Did my first single race on Monza with both cars being the same, the X.. the S2000? So, I appeared on the right side and the opponent was on the left side, but the sound of the opponent was heard from the wrong side, as if he was on my right instead of my left.

My System:
Amd Sempron 2400 (Mobo recognizes it wrong as XP 1500+).
768MB RAM DDR
AGP 8X nvidia Geforce FX5200 128MB DDR
OS: Ubuntu 8.10 with Desktop effects disabled.
Sound: Built in 5.1 but using just 2.