Hey all, I came home today, jumped on my iMac to check my mail and found that nothing came up. I started clicking around and it seems like it lost pretty much everything I had. My mail reset, address book, firefox, system preferences, desktop preferences, etc. almost like a new install. I can see the mail in the finder, so something strange happened. My kids play on the Mac all afternoon, I'm not sure if one of them were clicking around and moved something or what. Is it time to head off to a genius bar with this thing?