Okay, my sound was working till yesterday. Now nothing works. The volume won't let me move the bar up or down. It's grey and disabled. When I go to see all of volume control there's only 3 columns. Wave, SW Synth and CD player. It doesn't work with headphones either. I only use the speakers on the laptop. I asked my friend for help and he said to download something of realtek 97 something and i did. there were a bunch of choices so i just chose setup. that all went successful and then i restarted the computer. now when i go to volume it says no active mixer devices are available. i don't even know what this stuff means. I've been surfing the net and i saw a buch of smart people talking here so i registered. if you have anything that could be of value to help please respond. i'm so stupid when it comes to technical computers. you may have to tell me in stupid terms.