I generally operate this monstrosity on mute, cuz I despise to open a page, or an email to some bouncy little ditty. However, I do love to get the 30 second bits of music if I'm considering buying a CD. Well, last time I tried to listen, twarn't no sound. I've checked all I know to check (not much, granted) and all says I should be listening, but - nothing! Any advice as to what to check (please don't assume that I've checked the right stuff) would be appreciated, and you would be safe to assume that it needs to be phrased as per "Computer sound for dummies"! Thanks!!!