I just want to get to the bottom of this: i want to know if this is a fixable problem or if it is just going to be. the Macbook i have has an erky buzzing noise from the left side of the keyboard, and it is more very noticable when the laptop is charging. I also had to install the MB firmware update to fix the fan "moo-ing" that happened every now and then - now the fan on the MB is on all the time - a little dissapointing. Has anyone been successful in having a repair to get rid these inconvienences? Or is that just hot the MB's are?