I created a shared review PDF and enabled comments and markups in reader. Some people were able to comment, but some were not allowed. The Acrobat Reader version that all are using is Reader 8.0! The people that could not comment had the "Commenting: Not Allowed", but when I checked the PDF I created (the one they tried to comment), commenting "was allowed".
There was even one user that received an error stating that rights are no longer valid.
I hope someone out there can help!
Thanks
Lori Kassuba is an AUC Expert and Community Manager for AcrobatUsers.com.