Earlier today my 1 month old C2D iMac started acting funny for a few minutes. Every app I tried to open would continually bounce in the dock until I had to force quit. I tried relaunching Finder, but it quit and never relaunched. I was forced to restart and the computer hung on the gray screen before the indefinitely. I was finally able to startup by holding Option. I repaired permissions and verified the hard drive. Everything seems to working fine again, but I'm worried that something is wrong. Should I be worried, or do you think it was just a one-time issue? Thanks for the help.