Umm. yea, so I was trying to clear out space on my HD, but for some reason, after I deleted stuff, my HD didn't show any more free space, even after rebooting the finder. So I used a program to find the larges files on my HD and see what was up and i found the sparseimage. At the time, I really didn't know what it was, and it was taking up a monumental amount of space, so in my grandiose stupidity I trashed and tried to delete it. It wouldnt let me (natrually) cause it was in use. So I tried rebooting and what do you know... wont boot up anywhere past the logon screen. After looking up the sparseimage online, I now understand what it is, and need to somehow use the command line to put it back where it belongs so I can boot back up. Anyone knowledgeable on this? I know it was really stupid of me, but please help me out!