Forgive me if this is answered elsewhere, my search turned up 56 threads, none of whose titles seemed relevant... I've suddenly got a message in Mail - Mail can't update mailboxes because my home directory is full. I'm supposed to delete or move stuff to make room. But when I click on my home icon, the info at the bottom of the Finder window shows I've got over 40 GB of available space! What gives? In addition, it seems that most everything on the computer sorts under Home, so where on earth could I move things TO? I'm not sure I want to delete much, and anyway, it would take a couple hours to go through it all carefully to pick out the things I can do without/delete.