Missing complete filmography

[Terabyte]

OS: Windows 7 x64 Pro SP1

In recent days when I go to an actor or actress and click on their name to bring up their list of credits I'm seeing a small fraction. For example, Dolph Lundgren lists 9 movies in Media Center yet IMDB, http://www.imdb.com/name/nm0000185/, shows many more. Scarlett Johansson shows 13 and yet IMDB, http://www.imdb.com/name/nm0424060/, shows many more. It's like MC is only showing me movies that are in the Guide now not all they've done. I want to be able to look up an actor/actress and select movies they've been in, that may not be in the current Guide, to record in the future. I've been able to do that since my first Media Center box running XP Media Center Edition (this box is not an upgrade from box, it was a brand new box when 7 shipped). Something changed in MC that is entirely possible myself or someone in my family did, but how do I get back to seeing everything they've been in, not just what's in the Guide?

BTW, I have 3 other WIndows 7 Media Center boxes and they all show full filmography but my main box that has access to my HD set top box doesn't. Any help would be greatly appreciated.

Thanks!!!
Brian B.