Whenever I check my CPU usage, using the task manager, performance tab, it says 100% then within a second or two, it drops to 4 or 5 %.
Now, if I leave task manager open and run some off line applications, (open office, spybot, etc) it stays below 40 %. But if I open Firefox or check mail with Thunderbird, it jumps to 99%. When I play any on line game (pogo or yahoo) it stays around 90 + %.
I checked the fans, I have 3 in there. All blowing cool. Blew all the dust bunnies out.
My system is a P 4 1.7 gig, 80 gig HD, 1.0 gig RAM, netgear ethernet card, and cable modem. I'm using Win XP SP2 with lastest updates.