Hi! In December I bought a new 1720 laptop. Last week I start to "really" using it because until then I was working with my old laptop (different brand). During my first week of use I found a very annoying problem. If I use headphones I can hear some noise. It sounds like intermittent buzz and is EXTREMELY ANNOYING.

I have seen the same problem all over the DELL forums, and other forums but I never see a solution. I had unplugged everything (powercables, usb devices) and nothing, shutdown the wireless modem and nothing, I even put the System in Mute and the buzzing sound continued so I assume that there is a hardware problem or the solution goes beyond unpluggin cable. Can anyone help me.