I think this new Apple doc may explain why the original iMac software update 1.2 was pulled and replaced by v1.2.1 - see "OS X 10.5, iMac (Late 2007): Stuck in a "loop" at the login window after upgrading to Leopard" which includes a fix. (Another doc today that lists "Late 2007" iMacs - not "Mid-2007". A typo? or is there a revision in the pipeline, but as of today I could not find any info on new revs to the iMac (AL/Mid-2007) line. (The 1.2.1 iMac update for -Tiger- also lists "Late 2007" even though it replaced the 1.2 update for tiger that listed "Mid-2007" iMacs.)

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