I read 2 similar threads and still have this problem. I have an Intel D845PESV MOBO with onboard audio. I bought a SB Live 24 about 8 months ago, installed it and it ran great until a week ago. I was in the SB settings and changed the speakers and lost all audio. Now I have the yellow exclamation point in Device Manager for my multimedia audio controller. I have tried reinstalling my MOBO audio drivers and the driver for the SB with no luck. Every time I reboot it wants to install but cannot find the drivers. I am also having trouble with my DVD drives, how can I determine if this is a hardware problem and not just a driver issue?