I'm in desperate need of help. I just purchased an Intel MacBook about 2 months ago and have been getting this problem recently: 1. My CPU is being chewed up by some process. I have iStat Nano and I can clearly see something burning over 50% of my CPU. 2. I CAN'T OPEN ACTIVITY MONITOR. Every time I try to do so, the program freezes. 3. Whenever I try to shut down or restart the computer, it will close everything on the desktop and all that will be left is my wallpaper and mouse. And then, it sits there...forever. So essentially, I have to manually shut down the computer (which just isn't safe) and my computer's fan is constantly running because my CPU is running harder than it really needs to be. I've already tried to repair disk permissions, and that didn't do anything. Anyone have helpful advice?? Thanks in advance.