I have a problem that my computer uses 100% of the CPU and slows way down when I am playing internet video such as Hulu or using facebook. Both IE and Firefox will end up maxing out the CPU usage. It doesn't happen right away. It is usually takes about 5 min for the slowdown to start happening. I have Norton Internet Security 2010, I have run Spybot and AdAware. Spybot originally found two things and cleaned them. The problem persisted. I have a Dell Inspiron 2200 1.4GHZ and 1.25GB of RAM. running Win XP home Service Pack 3. Any help would be greatly appreciated.