Hi everyone! I've lurked here for 6 months, bought a 17" iMac about 10 days ago (after having used a PC my entire life), love it, and now finally have a question that I hope someone might be able to help with. Everything on my computer seems to have really slowed down. At first I thought it was my internet connection, but even when I am writing in word, there's a clear lag between when I hit a letter on my keyboard and when it appears on the screen. Scrolling is slower, typing is slower, opening files is slower, etc. I looked at the little thing that shows you CPU usage and everything is low (below 1% when I'm not doing something like opening a program). I ran a virus scan (sophos) and that didn't come up with anything. Does anyone have any ideas on where to go from here?