The machine has three fans and they all seem to be working. It's a very well ventilated case(was selected for that reason). I am using XP, and System restore attempts to restore, reboots and only then informs me that it was unable to restore the system to that specific date. I have 30 processes running, sometimes less. All of them, except for Weatherbug, appear to be essential.
The changes that took place in the last few days, well that's a bit more complicated. I just moved here, and the computer was in a padded box(extremely well padded in a box which itself was popcorned and sealed in a larger box) for a while. But when I hooked it up in the beginning of last week, it ran pretty well. It's gotten much worse in the days since. It also locks up pretty frequently. I also noticed about a 50% increase in popups.