I was playing Mass Effect on my Samsung R480 laptop when it started freezing up for a second or two. Eventually it just powered down. I assume this is due to an overheat. Is it extremely necessary that I bring it to Samsung to have it checked? Also, what can I do to prevent this from happening again save for playing in an air-conditioned room?

Here are my specs:  

Intel i3-350M processor  

4GB RAM  

nVidia GT 330M GPU with 2GB RAM  

On-board sound

EDIT: Thank you for all your answers, but if you have time, please refer to [this](https://superuser.com/questions/244826/my-samsung-r480-laptop-freezes-for-short-and-inconsistent-periods-of-time) link. The problem has changed.