Hi, Just set up my new 6 core over the weekend and it is a beautiful thing. It is almost silent. Can barely even hear the fan. Amazing. I do however now hear what sounds like a coffee pot percolating, which didn't happen (i don't think) for the first two and half days. I have an SSD as the boot drive (so all that is on it is the system and my apps), so that shouldn't be making noise, right? The other hard drives aren't in use right now (only safari and entourage are open), but that noise still happens. The sound is intermittent and isn't a rattle, and isn't the fan. Literally sounds like percolating. Anyone have a clue as to what this might be? thanks!