Look on ebay for laptop stand with fan! less than a tenner, also get hold of a can of air duster (An aerosol that blasts air, I know litrally buying fresh air) and spray into the vent, heck stick your hoover on the vent, the fan is probably just dusted up! Laptops aren't build for the way we actually use them! best on a hard surface like a desk etc. but we use them on laps, cushions in bed etc.