Most all laptops suffer some sort of cooling issue, just the nature of cramming things so tightly and now with quad processors and speedy graphics it's really gotten hot. I laptop base cooler is almost essential now. My dual core does nicely on a raised aluminum base with rubber, it allows cool air to wash in and around the air intakes. Yours may require a usb powered fan option which I've also used and loved up until I started using a external hard drive which took the last two available usb ports. Take a look at this logitech product, it's pricey but it does all that the laptops don't do well very well. Cheers and oh remember to open your laptop up from the bottom access panels and gently blow it out with compressed air from time to time the gear just like a desktop does get dusty and it will improve air flow, just be careful and not too heavy handed!
Logitech® Speaker Lapdesk N700