A common issue with our Production Premium Suite installs since CS4 has been that Encore is missing its templates and other Adobe provided content. It is a problem in the wild too, however the resolutions from Adobe and others don't seem to apply to our site license installation. We suspect it may have to do with the downloadable Production Premium installers from the Volume Licensing Site verses consumer downloads of Premiere Pro (part of Adobe's suggested solution) or the install disks themselves. The Library install is multiple gigabytes so perhaps it is left out of an already massive Production Premium download for the enterprise. Whatever the reason, the fix is simple.
It merely requires the copying of the necessary Library folder to the following paths:
Windows: C:\Program Files (x86)\Adobe\Adobe Encore CS5
Macintosh: /Applications/Adobe Encore CS5/
The Encore Library folder can be obtained in the College's software share under \software\Adobe\Adobe CS5\FixEncoreMissingContent
The Library was first installed on a Windows system using the install disk sets, and then the folder was copied to a Mac's Encore Application folder. When Encore is started, it registers the Library content and is set.