I solved the problem finaly... it seems it was not a BsPlayer problem afterall....
The stupid motherboard drivers were too old. Got new ones form the manufacturer (nvidia), but i found that they were using Realtek technology for their sound cards.. so i turned to realtek for latest driver pack. It fixed all my problems.. i have alot more control over my sound card. It's 100 % functional now .. and i hear sound through all 6 channels :)
ftp://210.51.181.211/pc/ac97/alc650/wdm_a352.exe
you can get drivers from there .. they are dates November 2003.
Problem solved. I think i saw another problem like this in another topic... hope they see my post. and btw, anyone having an AC97 card.. or any realtek based (via also uses realtek technology) can use there drivers with no problem. All drivers that come from manufactures (like asus, gigabyte.. and stuff) are very old.
Peace !