Could you give a little more description to what you were doing. I have never seen P2CMS divide any clip. Were you working with P2 Cards or Firestore FS-100?
Can you back out of Leopard? I think that may be the source of your problem. It should be resolved eventually on the Apple side but I cannot say when as I do not know.
but why panasonic says p2cms would work under leopard?
Operating Environment (Macintosh)
Mac OS X 10.4.11 (IntelMac)
Mac OS X 10.5.1, 10.5.2 (IntelMac)
Quick Time 7.4.1 or greater
Macintosh computers such as 2GHz or greater Intel Core Duo processor.
RAM: 1GB or greater
1,024 x 768 or greater display
When you play back AVC-Intra format, it is necessary to download the AVC-Intra decoder.
The P2 driver included with the P2 product must be installed.