hello, so I bought a MBP (Penryn) 2.4 which I had to return the next day already I hear a constant buzz coming from the right side of the keyboard.. It could be a faulty fan or speaker.. Anyone else experienced this? And: do the new MBP's produce more noise as it's predecessors? My GF's MPB 2.16 is totally silent, I expected the new ones to be that as well.. My MPB is now being examined in the store but whatever the outcome will be I want to know if a high(er) noise level is to be expected.. thanks..