I've created a simple userform which updates content controls in a Word letter.  (Nothing to difficult here.)  The form runs superbly on my computer, but when I've e-mailed it to someone else to use it, they get the error:

Run-time error '6124': You are not allowed to edit this selection because it is protected.

Upon hitting debug, it highlights the first line of code which updates one of the content controls:

ActiveDocument.SelectContentControlsByTitle("UniversityName").Item(1).Range.Text = txtUName.Text

I've made sure there is no protection on this document.  Does anybody know why the code runs fine on my computer but not on someone else's?  

Thanks!
-Mike

[Edited by freemarketmike on 30-04-2009 at 02:30 PM GMT]