Problem Solved
This might not be a recommended approach to solving the problem but in my case it did the trick.
I uninstalled Office Pro along with the add-in. I then used regedit to completely remove all keys under "Office" for local-machine and current-user.
After re-installing Office Pro...
Since putting up the previous post, I have uninstalled and reinstalled both Office 2007 and Access Developer Extensions. And it hasn't made any difference.:mad:
There has to be a registry issue involved here. Does anybody have any idea what registry keys might be involved?
I have the same problem but the solution does not work. I just cannot add the developer extensions back in.
Please help, someone. This is driving me insane.