well netzero and some router software are the only things i can think of that I installed right before I started getting errors, and as far of those go, ive nuked just about everything that had to do ...

Just over the past 2 days, I've noticed my CPU usage hovering at around 70-80% when I'm just browsing the net, or doing nothing.

This is an undesirable program. This file has been identified as a program that is undesirable to have running on your computer. This consists of programs that are misleading, harmful, or undesirable.