If it's overheating, try putting the laptop on, say, bottlecaps to get it a bit up from the surface it stands on (the idea is to get it up, no need to rush-drink four bottles of Coke). That would give more room for hot air to escape the vents. Also make sure that nothing is blocking the vents, that could be seriously harmful to your entire house/neighbourhood/city, depending on the fire department.
I think turning the graphics slightly down could ease the stress on the system too, perhaps resulting in less heat.