this is very frustrating and i'm hoping someone has a solution. erasing the drive is not an option, i don't want to deal with backups. i already tried verify and repair disk and it said it was fine. i'm on a macbook core duo 120gb hd 1.25 ram if that matters. oh and also i upgraded my HD about a month ago from an old 60gb. it went fine and everything works, never had any problems.