Ok - I figured it out...
We are using MSBuild for our new projects. (Since moving to VS2005)
Our configuration for "Building All' of our files says "Rebuild All"
but in fact, only rebuilds out of date files.
Some of the 'assumed' up to date obj/dll files still referenced the 5.0 CuteEditor.dll file.
After *really* rebuilding all files - everything seems ok.
So - It was not a CuteSoft problem...
It was a problem between the keyboard and the chair of the customer!
Thanks for your help.
Randy
PS. I would like to reserve the right to ask stupid questions at a later date as well.