I recently had a customer getting the following error whenever he tried to use an RMS template in Office, and either send the content or save it:
"The permission policy you have selected is no longer in use. Contact your administrator to obtain new or updated permission policies."
This isn't a wonderfully descriptive error.
The reason this was happening to my customer was because he had put up a brand new RMS infrastructure, but had previously had RMS in his environment, and had bootstrapped this machine against it.
This caused him to have two publishing licenses in his DRM folder. One was expired, and was from the old installation, and one was from the new installation. The RMS client code can't tell the difference.
So we look at the date on the template, look at the date on the publishing cert, hit a mismatch against the system time, and wallah...you are pulling your hair out.
To fix the issue, just rename the DRM folder or delete the offending CLC, and restart whatever application you were using.
The problem can also happen if your system time is incorrect on the RMS server, or on the client so check that too.
Hope this helps.