add-ins can only be connected or disconnected by an administrator

Help!
I have been using the office live connector add-in for MS Office. However,
Excel recently has the add-in disconnected (Word is still connected). I
rebooted, reinstalled the Add-in. Nothing. I went to manage COM add-ins and
tried to click the box to enable, and recieved the following error, "This
add-in is installed for all users on this computor, and can only be connected
or disconnected by an administrator." I am an administrator. I do not know
why I cannot connect or disconnect, or why all of a sudden it is disconnected
in Excel. Any help?

Thank you!

Ralph.