My sounds was working perfectly fine and everything was normal, but now I'm suddenly having problems with my "sound device". I normally use Itunes to play music but it won't play any songs. So I tried to use WMP, but that won't play music either. This is what WMP tells me when I try to play music... "there is a problem with your sound device. There might not be a sound device installed on your computer, it might be in use by another program, or it might not be functioning properly." The thing is, is that the computer sounds work fine, like the beep, or the log in noise, it just suddenly won't play music. Does anyone know anything about this or can anyone help? Anything would be greatly appreciated.