howdy. my vista ultimate is not producing any sound. I've had it for about 18 months with no problems. yesterday i unhooked the pc from the amplifier and turntables, then when i set it back up, there was nothing. the bottom-right speaker says everythings fine, as does task manager. two seperate sound cards are producing nothing on this pc. on the other pc, they are working. the phono lead to the amp is fine, i checked with a laptop. the speakers are fine - i can still use the turntables. i wont be able to get to the house with my vista discs for a few days (in order to do a repair), is there any other other way of repairing sound in operating systems until then?? thanks.