Right audio channel doesn't work

Hey, I have a bit of a problem with my sound card(s). The Right channel audio doesn't work. I have tried installing new drivers, formatting, using the onboard A97 audio, different speakers, everything that i can think of. What else could be the problem? I have a gigabyte motherboard, athlon xp 2500+, ect ect. Could it be some kind of setting in my bios? (although i've tried setting the settings back to default and it didn't help)

Hard to believe a channel would go out on both my Audigy and the built in sound card at the same time. Could it be a problem with the motherboard?

Hi, I had the same problem about a 3 months ago. Although I use on board AC97 only and CL 5.1. After checking cables etc. and calling tech support to no avail, I switched the left/right output cables at back of computer.(Of course you have to switch speakers too.) For some reason it worked!
BTW, I don't think anyway bios are involved
Goodluck

XP 2000+
MSI KT3 ULTRA-2 KT333
Maxtor 60GB ATA 133 7200RPM
512MB PC2700
ABIT G4 Ti4200 OTES 64MB
Win98SE