File open dialog error

[prairiedog]

All,
I get the following error message when I try to open a presentation:

"An error occurred opening the file dialog. Please save your presentations,
exit, and then restart Powerpoint."

I followed the instructions but I still get the same error message.
Help!!!

Thanks
prairiedog

 

[prairiedog]

Steve,
I get the following addins listed:

No std addins

COM addin:

multimgraddin.AddinDesigner1PDFmaker.OfficeAddinrhd.Connect

 

[prairiedog]

Steve,
I tried the following:
1. Removed Acrobat
2. Repaired MS Office(reinstall)

But I still get the same error message. The following COM add-ins are still
loaded in:

multimgr
Designer1
rhd
Connect