Strange that my google search didn't find those too. I tried the define, the code and the text all in one, and only found places that listed the errors without explanation. Oh-well...it seemed that the simplest solution was the one that worked: one guy suggested to remove the COM+ component, recompile it from scratch and then add it again to Component Manager. That worked (in case someone else stumbles upon this).
Thanks Victor...it seems that you've saved my bacon more times than I can count now :-)