When choosing in SM the Monticello (123->131) package, it loads most of 
the way, recompiles all the MC classes, then throws:

UndefinedObject(Object)>>doesNotUnderstand: #do:displayingProgress: 
'Cleaning up...'.

from the trace:
MCPackageLoader>>DoIt {obsoletions do: [:ea | self tryToLoad:ea ] 
displayingProgress: 'Loading...]}

obsoletions appears to be nil.


Brian