Thank you EVER so much for going to the trouble of writing this article. I've been having shutdown problems for so long that it seemed 'normal' and the fans were on constantly (when the laptop (Toshiba A30) actually worked, that is). Having cleaned the heatsink following your advice, the fans now sometimes turn *off* and I can actually use my laptop without propping it up at the back. THANK YOU!!!

fireproofbetty