ahudson, I have the blank Library problem also.   Any ideas for a solution?  Used ShaderWorks import runtimes to get P8 to read scenes set up in older version of Poser so that it would search and find textures without  issues, but have yet to see the new Library appear.   Had a feeling it could have been an issue with firewall (after seeing in the manual that this could cause the Library to not function properly), tried to address any blocking attempts, reinstalled three times, and still no solution.   Everything else I like so far about the new Poser 8 (especially better lighting/renders), but wish the Library/Runtime had option for the old set up.