Per recommendations last week, I deleted the "ML" directory on my SD card then copied it back from the newest release. This seems to have corrected the issue I was encountering with crashes within "Memory.c" generating "Err 70". And, yes, before I performed the above actions, I compared file counts in the "ML" directory on my SD card to those in the latest release directory. They did in fact differ.
So did I misread earlier documentation which instructed us to simply copy a new ML release on top of the last one? I don't believe I would have done so on my own. Then again I suppose I could have imagined it.
Anyhow, I certainly have encountered analogous situations in software development. In one job I was the engineer with the "exciting" responsibility of building and maintaining product installers, wherein one was always doing battle to try to stay in sync with changes from Microsoft, Apple, Sun Microsystems and -- of course -- the users.
Thanks for the recommendation. I suppose the obsolete ".mo" must have been the culprit as suggested.