Hey Folks! If someone could respond asap to at least part of the following, I would be incredibly grateful...as you will see below, I'm afraid to turn off my computer, for fear that I won't be able to restart it...are my fears justified? *Thank you* for any help you can offer! So...I'm supposed to be selling my computer tomorrow, so I was trying to do a zero erase from the Disk Utility option on the install disk, nothing seemed to be happening (I waited and waited), so I clicked on "skip," and again nothing happened. I wasn't sure what to do, so I went to Disk Utility ->Quit Disk Utility. I then got a warning message that Disk Utility was still working and that if I didn't let it finish, that something might happen to the hard drive. So I waited...and waited...and waited. Fed up, I went ahead and shut it down. I then (stupidly!) tried to do the zero erase again, and went through the exact same process. Only, after *this* time, the hard drive no longer appears as an option as a place that I can install OSX. :-( not good. At present I've got Disk Utility (from the install disks) open, and I've tried to do verify disk and repair disk, neither of which work...I keep getting the following message: "Checking Journaled HFS Plus volume Invalid B-tree node size Volume check failed. Error: Filesystem verify or repair failed." Fortunately Disk Utility still recognizes the presence of the hard drive, but it has changed the name of the drive to "disk0s2" and when I click on it, at the bottom it reads, "Mount Point: Not mounted, Format: Mac OS Extended (Journaled)" I'm literally frozen right now...I'm afraid to turn off the computer, for fear that I won't be able to get it to start up again (is that a possibility?) It doesn't seem inclined to go into sleep mode, so I suppose I could just leave it on? The main question, though, is how do I fix this? My inclination is to shut down the computer, take out the hard drive, connect it to my iMac, erase it, reformat it, and then use Carbon Copy Cloner to clone my iMac's hard drive to it...do you think this would work? If not, what else can you suggest? Thanks in advance!