I get questions like this a lot at work. My advice is to get a new laptop and sell this Compaq you have. Get something on sale for about $500 and sell yours for $100 and you'll be just fine. That is, assuming you aren't doing any heavy gaming or anything. If you sell it to someone like me, $100 is a good deal for just about anything with a decent LCD. The buyer can tear it down all the way, clean out the dust, replace fans, redo the thermal paste, and get it back into tip-top shape.