hi I have im my old PC , this motherboard , msi k7t266 pro 2ru (msi6380) i use the chipset VIA for the sound ( no sound card) and i have the sound only in one side on my headspeaker !! i've windows xp pro sp2 (all update microsoft) i've the last hyperion for chip via i've the last via vynil for the sound i've the first bios of this MB ( can i update this bios with msi live ? ) my headspeaker is plantronics audio 90 tia