So my System Preferences has frozen. Never done that before. It froze on the "Desktop and Screensaver" panel. I clicked on one of the iPhoto folders and it just suddenly froze. I forced quit and re-opened which didn't help. When I re-open the iPhoto folders don't load and I just get the spinning wheel. Also restarting my Mac doesn't help and relaunching the Finder doesn't help. Any ideas?