Ok, I was having a lot of major problems with core shutdowns, overheating, running Windows etc, etc. I decided to sell the Air because of frustrations but I decided to give it oe more shot. As of yesterday I did a full system restore, from scratch, updated the Air to all the patches available from Apple, installed a fresh copy of Coolbook and also installed a copy of TinyXP via VMware Fusion. I have only used it for a few hours but so far the temperature has not jumped over 70 degrees celcius, even with running One Note and Windows media player at double speed inside VMware. I got the email running and the internet. I have not attempted to watch movies yet. So far I am impressed but will see what happens in the next few days. What is the general consensus with using TinyXP. I only need it for video streaming and One note. I am really hoping this does the trick. Thanks.