I have no sound coming out of my windows xp. I tried to download some device that was supposed to restore the card, but the installation would not complete because of an invalid something.. I don't know. I'm highly frustrated. I noticed that on my volume control, all is normal except the balance lever on the pc speaker is not highlighted and I cannot adjust it. I can adjust the volume control alright though. Please help me, I am not computer savvy, and I have spent the last 2 1/2 hours trying to figure this out. I haven't done anything new either. All was working fine yesterday, and today out of the blue, I turn on my computer and no sound.. Nothing is muted. Nothing was downloaded. There are no sounds at all. I have no headphones, so I can't test that.. And no cd's either. I am simply trying to listen to music over the internet, but can not. There are no exclamation points or red signs next to anything in the audio visual area. I don't understand. Please help me. I'm sure everyone is tired of this question, because I'm sure it comes up often. I could not find an answer. Please help.