(started new thread thought might point out interesting happenings to more people)As posted before: (iMac 11/07 with all updates and ML) would not start or turn off (only start in "safe Mode"). Had to unplug to turn machine off. Tried Disk Utilities/verify disk, verify permissions etc....Hard disc showed "no problems". BTW, in Safe Mode, could not access Quicken/ Windows XP via VmWare. Started using Super Duper Clone, could start, bring up all programs etc....do my work. Made an appt with Genius for tomorrow, Monday.Meanwhile, pulled out the Mac OSX for Lion old manual (David Pogue). Looked up "Troubleshooting" - here I found this: "Don't do Disk Utility/verify/repair disk from the disk you want to repair!!!!"Duh!!! Why didn't I know that? Obvious now that I do. Chose original HD in System Preferences this time, re-booted holding down "command or options-R"on start up, this took me to MacOS X Utilities, Disk utility, this time selected REcovery Disk and ran the "repair HD, then the verify, then repair permissions, then verify permissions" since I had no idea what i was doing and trying to cover everything. Again, HD tests with no problems although I did see this statement: "ACLs found, not expected......". Anyway, repaired and verified everything in sight.Turned machine off, re-booted yet again, and here I am - start up without any problems as far as I know. Looked up the only warning I ever found re. the ACLS (which to me have a lot to do with "knee problems not computers)....and it seems to be an innocuous issue (usually having to do with "Leopard") which may? not really have impacted anything.A long way of saying, I'm up and running again (at least for now), will continue to try machine a couple more times today prior to canceling the Genius Appt tomorrow.so, what was wrong? How did it get fixed? Is there something I should/should not have done or do???? or???????? I did learn one important thing! Ya can't fix the disk you're on, while you're on it!!!!!! Another gold star for having good backups and, especially, in this case, Super Duper which allowed me to boot from it to get on to computer. Time Machine doesn't work if you can't boot up!comments welcome....
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