ok i got a problem with my new computer i just set up. i get no suond. the headphones i use get no system sounds, mp3, games anything. all the drivers are installed but still nothing. i tried the headphones on another comp and they worked fine there. in device manager the only thing i have found that might be it according to the xp trouble shooter, is that the "digital signer : not digitally signed". could this be it and if so how do i fix it. yes all the volume controls are open and up, and whats weirder is that my mic works to talk into, so i dunno if it could be the motherboard. is it possibly a jumper setting or something like that? my motherboard is a chaintech vnf4 nforce4, and if i cant get this to work, would a cheap audigy 2 card be compatible with my board and fix the problem? thanks