AutoCAD 2013 - Not sure if others have had a similar issue.
I have downloaded and installed the featured app and the drawing tabs app from Autodesk Exchange.
It all seems to download and successfully install the app, however nothing is added to the ribbon and the drawing tabs app is not loaded, it as though it wasn't even installed.
Is there a support file path that needs adding in options, is there an issue with 64bit versions.. hopefully someone might have an answer.

Just don't understand why installed apps do not appear to load or work.

Thanks in advance...