chris, I'm going to post the link to your other forum topic here because I see them as being related:
System Idle Process. I think mention should be made here of the gist of your other topic, that you took your computer to a repair service after it was damaged by an electrical storm or power surge, and the power supply was replaced.
I have a suspicion you either still have power supply issues or, even worse, the damage to your computer was more extensive than the power supply. In other, perhaps your motherboard or other components sustained some damage but not enough to render it completely inoperable. As far as I know, if computer components fail due to power surge damage, they are probably going to fail completely right after the power surge incident, but I'm not absolutely sure. So, again, I wonder whether the final resolution of this is going to get more expensive for you.
Do you know the Wattage rating of the power supply they installed? Do you the brand and model number? Can you verify that the fan in the power supply is working?