Hi Everyone, Just got a Penryn 2.6 MBP 17in, love the machine, it is pretty much perfect. I have just noticed that sometimes on graphically intensive web pages if I scroll using two fingers there is a very slight clicking noise coming from under the G and H keys. It kind of also seems to come and go, it is not an always thing. Is this normal? It also seems to do it more when on magsafe power rather than on battery... I am thinking this is just the graphics card making noise, but I was curious if others have experienced this? Thanks!