I've noticed that some users on here have funny images of windows error messages in their signatures, such as "Windows has detected you've moved your mouse. Please restart your machine" or "keyboard error: press any key". Where can I find those?

try here: http://atom.smasher.org/error/

Exactly what I was looking for! Thanks!

Haha, that Hijack This! icon always freaks people out when I use it on their computers.