Many Thanks Janaba...It always pays to follow Mystler's Instructions...If you know when to look for them: I had Not....looked or followed, LOL (Original instructions found here
http://forums.the-open-cave.net/viewtop ... f=24&t=438).
But I thought I ought to validate your example, so here is my story.
MOULa 1.918 updates had seemed to be working fine for me ( I don't recollect ever deleting the TOS.txt file for that previously)) and TOC-MOUL 2.12 seemed to work fine too (without subject dat fix)....until 6/24/13.
There had been one small TOC-MOUL anomaly, because certain books were disappearing from Takotah Rooftop, which I thought might be a new Bahro trick; so I came online to study the matter and discovered
City_District_KadishGallery.prp "Not Found" error in both public and Private cites (Not COD). I rejected the idea of a simple single file swop, because I figured more errors may follow..That drove me to the TOC-MOUL Forum where I found this thread
So I made the MOULa 1.918 fix by deleting the MOULa TOS.txt file and logging on; which forced a full MOULa 1.918 update (after saving the old MOULa dat files seperately). After 3 login attemps with errors it worked.
Then I took a copy of the (new) MOULa dat files and placed them in the TOC-MOUL dat folder, (having cleaned out and saved seperately the old TOC-MOUL dat files).
I also deleted the TOC-MOUL TOS.txt and attempted to login in (seemed harmless enough experiment, but may be a mistake (??))...expecting to force the full TOC-MOUL 2.12 dat update...and again it took about 3 tries to succeed with the login.
AS I expected, The Green Screen age and the Summer Relto dat files were NOT carried over in this process, nor were they downloaded with the forced update...so I loaded them in manually from saved record, and now they work too

))
HOWEVER ! I have just carefully tested all TOC-MOUL Public, Private and COD Cities. All but COD still have 9 missing Books on Takotah Rooftop. There is another anomaly.. The "King Shomat" book in TOC-MOUL has No author's name on the cover. The same book in MOULa has Nick's name on the cover. It appears that there is some mixed configurations here, perhaps.....and some stuff not being called in Public and Private Cities. Not sure if its general effect, or just me
(edit 1) Just found another anomoly.....the two pieces of Paper on Watson's desk in Takotah rooftop won't lift off the table in COD. They work fine in Public and Private City...(Mcbeam verified all this too...Thanks McBeam !)
(edit 3) Confirmed that the MOULa 1.918 account avie has 9 missing Books on Takotah Rooftop also: So the problem seems to have sourced on MOULa, NOT TOC-MOUL
(edit 2) Checked the other "affected ages" (ref Mystler query above)...Flat Stanley doesn't have Kveer, Myst, to check yet; but GreatTreePub, philRelto, (all) the guild pubs, spyroom, and Descent work fine for him
Other avies in MOUL were asking about TOC-MOUL accessibility, so I tried to steer them here, 'to find a way'. Hope this helps..LOL