so my friend has a macbook... he says it was working fine, he had added a few widgets, like the mlb scoreboard and weather channel something or other. he is "99 percent sure" he shut the computer down during an update-- but on the desktop he says... and now every time he turns it on, and logs in with the right password it goes to the blue screen for a second, and then back to the log in window (believe me, he isnt putting the wrong password in, it shakes when it does that). i tried disk utility mode to repair permissions tried starting in safe mode even use the fscw -y -f thing, or whatever it is to use single user mode (aka old skill disk utility) so im wondering what my next step should be. Can i just restore factory settings or something? I dont want to have to completely reinstall... thanks!