Okay so the problems started, maybe 3 or 4 weeks ago when I got an external hard drive for backup. After a while, I realized I didn't need it and unplugged it and turned off Time Machine. Ever since then, my 24" 3.06 GHz iMac has been really really slow. I do lots of video editing (FCE, After Effects), and I can understand if it's slow when I'm using it since I have only 2 GB RAM. But I am having these problems even when just Safari's open. I don't think it's the editing software, because I have had those on here weeks before I started using this HD. Is it the hard drive? I also do have, I think it's called iStats? But sometimes even with Safari open, it uses up almost all of my RAM. I also have nothing in my trash, and in my 500 GB internal hard drive, I take up 129 GB. I'm really pissed though because I can't seem to fix it. I also use GarageBand, and I decided to post this when after trying to record a song maybe 6 or 7 times, it once again stopped and came up with the "too many tracks played" window, when only two tracks were in the project. Can someone please help me?