My CPU has been acting up lately, on a Dell Inspiron 6400, more than usual. It gets really hot and my computer then proceeds to slow down with the fan going full tilt. I notice it usually happens when I'm watching videos online streaming, so much so that I can't get through an episode of Deadwood without stoppin a few times to let the thing cool down. My question is what can I do to minimize this issue? The comp is a couple years old so I was debating opening her up for a little spring cleaning, yea or nea? Is there any other measures that will help my CPU from getting so hot so fast, short of sitting it on a ice pack? Always used to get nice and hot, but not to the point my comp slows down, when its sitting on a desk with fine ventilation.