Hi mikepurser,
The Adobe Creative Cloud consists of Acrobat 11 whereas, the Creative Suite 5.5 had Acrobat 10 in it.
I would suggest you to remove Acrobat 11(if it is still there) and install Acrobat 10.
You can remove Acrobat by going to the Application folder and using Acrobat uninstaller.
Thanks,
Vikrantt Singh