that basically says it...im on an abit it7 board with an intel pentium 4 1.8a gHz. even when i close everything, the cpu fluctuates between almost 0 percent and 100 percent every 10 seconds about, and i know its really doing it, because programs that i run that use a lot of cpu arent running well at all, very unstable, such as watching a dvd with digital audio that it has to decode, or just watching a dvd at all really. what could this be?