OK, major crisis. My iMac (running 10.1.4) has been feeling kind of sluggish the past few days. A few hours ago I was happily posting and listening to iTunes. It occurred to me that I needed to make a new icon and I opened Can Combine Icons (which is a nifty little shareware program, btw). It would act ok for about a second and then I would get the spinning beachball. It went on for some time, and I eventually force killed. I tried again with the same results. Then I gave up and decided to listen to a different CD. Clicked the iTunes icon and got iTunes for half a second and then the spinning beachball. Got pissed off and restarted the machine. Now I can't use any of my programs - OmniWeb, Adium, Word, GraphicConverter - all seem fine for a moment and then the spinning beachball begins. The only thing that seems to be working is the Finder. Please help - how do I troubleshoot this? Keep in mind that I have no pre-OS X experience. I've got my iBook (from which I'm posting) set up right next to the iMac, so I'm ready to go to work. Please help!