Updates:
Status: Fixed
Comment #6 on issue 750 by usman.bh...(a)gmail.com:
GLMTextModel(Object)>>doesNotUnderstand: #highlightSmalltalk:
http://code.google.com/p/moose-technology/issues/detail?id=750
ok problem resolved after applying the proposed changes...
it works now ..
changed to SmalltalkCodePresentation from TextPresentation..
change committed in menssana-core.