Hey, Problems just started today when I was listening to music and the computer just stopped playing it. Now, when I try to play it with iTunes or WMP it gives me this error message 'Windows Media Player cannot play the file because there is a problem with your sound device. There may not be a sound device on your computer, it may be in use by another program, or it may not be functioning properly.' Also, I can watch videos, it's just without audio. Any ideas?