Okay- My replacement laptop is on it's way. Yesterday I took a flight from California to Austin, Texas to visit my brother. By the way, he works for si-labs and designed the chip-set that went into the USB modem for the MBP... small world. Anyways, getting to my point. yesterday I take my laptop with me, used it a few times on the airplane, and in the airports. I get to austin to boot it up, and there is no whine whatsoever. I am now on my 2nd day here and the whine is gone. I have not heard it once and I have my own quiet private bedroom. I usually run MNK to get rid of it. I am able to identify the sound easily. It, however, is gone. Any ideas?