We've got a computer that seems to be downloading something even when no programs that would access the net are active.

We've run a scan with AVG and found no viruses, but when I open the Local Area Connection Status, the Received data number keeps rising as if something were being downloaded.

Is there a way to see what is being downloaded or what is connected to the computer? I tried running netstat but it didn't show anything.

The computer is running XP Pro.