My apologies for this repeated topic. I have just brought the 1.8GHz + SSD version. It's really fast and quiet, until the fan spinning like crazy. What is the acceptable CPU temperature on the Air? Mine got up 89 degree C (192.2 F) MAX for a while, when the heat-sink is at much lower temperature, like 60-ish. Can't remember what tasks it was doing. It's 54 right now just with the Websites running, and the heat-sink is at 43. Is it normal? Or should I worry about the thermopaste on the machine? With many thanks.