Hello My MBA has the usual issues with stuttering playback of Flash videos. Basically it's unusable in that respect. I've read of the success people have had using Coolbook to underclock the processor and control the fans. A colleague said I could do the same thing with SMC fan control, but it doesn't seem capable of that. If it is I'm not sure what settings to use. Do I need to buy Coolbook or can I tweak my MBA with SMC Fan Control or another application? If I definitely do need Coolbook I'll buy it, so any advice on what settings to use would be great. I need to cool this sucker down!!! Thanks Josh.