What's with my task manager??

[Ranti]

Umm, yeah, I use XP and it keeps pausing every now and then, of which I know the reason. That is that on the task manager, the system process is taking up the rest of CPU (usage) when its supposed to be the System Idle Process!

Basically, because of that my computer is constantly at 100% CPU Usage when it should be much lower. How the heck do I fix this? I've tried optimizing in the system settings from programs and not background stuff and taken off all the eye candies on XP and still no good. What am I missing? It's a pain in the butt when I'm trying to play D2 online or typing a paper and then all of sudden my computer pretty much locks up for about a min or so. There has to be some way to switch it from all the usage left from System to System Idle, but I can't figure it out.

Plz help.

I circled what I'm talking about in red and circled the numbers in blue..hope it helps.