By reinstalling the generic -pr package, you should be able to pull in any missing dependencies. If that's what the problem is. I haven't tested this, though. The CSSU has its own -pr file, which overwrites the generic one. You should make sure PR1.3 is working properly before you install the CSSU.

Also, do these videos (no need for apostrophe ;-)) play with mplayer? I don't know how to check the profile of a video on-device but are you sure they're all baseline?