I just got home to the US and my waiting PB SD 1GB (part of the November 30th shipment). I turn it on and have only gotten to the form where i fill in the registration info and the right side fan comes on. Kind of high pitched whiney sound. the computer sat and went to sleep without any apps being opened. Came back and the fan was out. Three minutes after waking up it came back on. then downloading the system updates and the second (middle fan) came on first low then full speed. then restarted after system update was done and both stayed on full blast. Is this normal?? What do your systems do?? I only have a couple of days for the 10 day return period, what do you guys think??????????