(Thus: PS was also zeroed). Boot: the rest comes up operating: BUT
First screen seen: cluttered; first of (20+) was The Viewer WIndow(s), all frozen at 3-20.. First one was greyed-out, the rest normal-white: but inoperative (RYG dots uncolored, natch).

Thus: somewhere in the Twilight-zone of OS X-each clicky to see. if. it would lanch; happened, invisibly (as seemed the case at time, because of that glitch-response to the command)
Additionally in-grey resides the "Accounts" tab [@ logo] just after [General]. Perhaps the ∑ are the tells? re corrupted rebuilding symptoms; unclear if that is a DIY sequence for us amateurs, who know-not how to read the tea-leaves of various responses occurring along That procedure.

Stuffed Zombies in lower r.h.-corner near-off-screen, for the nonce. (Oddly) these can be positioned--but I no idea if there's an [also grey?] Zombie Apocalypse Eraser command; does anyone? Mayhap Zombie-behead.cmd?
But even zapping these: returns to status quo ante, a circle-jerk. Finally, One More Launch-try: {{sigh}} ...(ditto as previously).

At least the game is Interesting. Looks as if I still have to schlep the box on Tues. (T. would have acted yesterday--while 'full'--but: Webmail gave us both a reprieve. Can't complain: first actual melt-down from 1/09 20" through this 24" iMac; the Doze-years, Otoh.. ...

[Back to daily trivialities: The Moscow Menace], a creature dedicatied to following the *exact-Plan for dissolution of us all, Da! Tovarisch
* Manifestly incapable of 'planning', he Can follow a Dictat in 4th-grade-English or. be. further-humiliated. Catch-22, mofo

and the wrapper contrived by OS X folk. Back when Linux appeared to be a viable escape-from [not 'New York City': the movie] recall playing with fsck a bit, (flush from having contrived a (simple) Unix coup which enabled some language students at U/Indiana to send Cyrrilic-text in their e-mails--this was beginners'-luck veritably--but it bloody-Worked. My friend's class-mates all wanted a copy; she was in Moscow and I sent a sample there. (I thought, on dropping-in to UI's IT center: w.t.f didn't these Pros take 5 mins (for them) and get them this fix wayback? ..believe I wasn't churlish, as in {sheesh!} But wanted to be.

'Discrettion being the better part of valor', I put self in place of any next investigator (always hoping to receive a cadaver which hasn't been 'helped along' by a neophyte). SInce the implications are: that OS X-fsck lacks the details of the Original, etc. I think it best to punt. I did run Disk Utility on the 20" periodically, mainly as a prophylactic (also hoping to grok a bit more of the prolific *Console messages [Greg F. RIP] advised, natch: ~"don't even Try"; MIss Greg. Still, I always believe that if you look around at the sophisticated tools before-Need, you get at least a sample of what messages look like ... when all is still AOK. (Sure works with er, particle accelerators).

* Ex: indeed found some relevant messages from a few days back, under the heading, 'asi' ~ [date I didn't know--the Zombies zoomed-in on "3-20-20"], making that association plausible; will pass that on. fwiw

Thanks for the links. Need an oscilloscope for anything? There's a Tektronix 323 teensy scope
[ http://w140.com/tekwiki/wiki/323 ] which worked fine on AC, but its aged (AA?) Nicads need upgrade to modrin NiMHs /easy peasy. Too much drain to work-now with present ones in place, even on AC. It's yours if you want :-) Probably a couple probes etc. It was amazing when launched, as it is Tek quality thus bulletproof--they built their own CRTs and much else. All gone now, but with discrete transistors in sockets! and new PS caps every couple decades ... it could out-Live the dis-US, y'know? :-þ

Cheers

Details via? myfirstname, usual sign, Valley Of Moon initials, common suffix.
(among shortest addys extant?)
PS: all these years: not knowing what the S stands for (!) ... 'Sherlock' could be fitting? :-þ

(I'm presuming that you can get all tech info from link), incl. (didn't check) some links to full manual w/schematics, surely Out There.
Else can see my collection/manuals--if there is a spare; I give it 99% that this will fire up with new batts ...
nothing much deteriorates in these; a few have gone through here.

Given the Times, this may be a while re delivery, natch.