So I bought two new Dell vostro 200's. I have a pair of speakers I have plugged into one of them. (this is at work). Anyway, when I'm using quickbooks one of the computers will beep after I save invoices, checks, and so on. The other does not, how can I get it to stop making these annoying beeps? It's coming from inside the computer, this is on the computer with the speakers plugged in. I also tried to disble the onboard sound in the BIOS settings, didn't do anything. Any ideas? Only happens on one of them, they are both exactly the same bought at the same time.