I have had the exact same problem with my initial installation of PI and the Emitter Library issue – trashed everything more than once, etc. Same problems remained.
Then I downloaded the emitter libraries and pointed to them instead and the program ran.
Unfortunately, it crashes after only a few clicks while playing with it.
The Demo ran fine – very disappointed to discover missing emitters showcased in the demo not found in the retail version and in the software’s overall performance.
Allen Kaufman
Sunlight Digital – media with meaning
artist-friendly video productions
http://www.sunlightdigital.com