I know this is a long shot but I am going to ask anyway just in case there is a quick solution. I recently had to reset my content database to fix a problem (which did fix the issue) but now all of my installed smart content shows they are not installed (or thumbnails are greyed out; see attached image). The only way I know to show the content as installed is to reinstall them one by one. Does anyone know of a way to show the smart content as installed again without me doing the obvious? 
Oh, and the content does show up on scenes that I have previously saved and rendered but I have to reinstall the product to do new renders.
Thanks for any help!!