Hi JP,
All users are seeing the ALT Text boxes. We are almost positive that this is a MicroSoft programming issue, dealing with ablity in the action script to turn on and off ALT Text boxes for a web publication. I had an Adobe Dream Weaver user take a look at the issue. In the code for some reason the MicroSoft is assigning an ALT text box (MS calls them Screen Tips). Dream Weaver has the ability to turn on and off the function in all phases (publishing, Web page, and email) in one step (option). This is not the same for MS Publisher as the MicroSoft programming ingores any Alt Text (Screen Tips) rules.
Hope this helps and thanks for the analysis.
Steve