Why does Application Manager say "Try" for Acrobat XI Pro?

Question

If I have a Creative Cloud subscription, why does the Application Manager say "Try" for the Acrobat XI Pro app? Shouldn't I be able to upgrade my existing X Pro version? I have tried in the past, but it will not work after download.

Answer 1

Re-reading my post from Saturday, I thought I could add some more detail about what I am actually seeing.
When I launch Adobe Acrobat XI Pro on my MacBook Pro running OS X 10.8.2, the standard Acrobat window providing options for the next actions I can take with Acrobat - Open a file, combine files into a PDF, etc. - appears briefly and then Adobe Application Manager launches automatically.  AAM shows me a window labeled "Adobe Acrobat XI."  At the top of the window area is the title "Serial Number Upgrade," and the text below that headline states, "Serial Number you provided is valid, but a qualifying product could not be found on this computer."  It goes on to state, "To use this serial number, you must own one of these qualifying products. Please choose the one you own and enter its serial number."
Below that there is a drop-down menu titled "Select a product," which lists the following products:
Adobe Acrobat X Standard
Adobe Acrobat XI Standard
Adobe Acrobat 8 Standard
Adobe Acrobat 9 Standard
Adobe Acrobat X Pro Macintosh
Adobe Acrobat X Pro Windows
Adobe Acrobat 8 Professional Macintosh
Adobe Acrobat 8 Professional Windows
Adobe Acrobat 9 Professional Macintosh
Adobe Acrobat 9 Pro Windows
Adobe Acrobat 3D V8
Adobe Acrobat 9 Pro Extended
Adobe Acrobat X Suite
Next to this drop-down menu is a text entry block for the serial number.
Below that is the text, "If you have registered products in the past, you can go to you account page to find your serial number. Contact Customer Support for further assistance."
My next step will probably be to do another complete uninstall and reinstall to see if that changes anything.