Sometimes it does not work

MBP 15 2010 4GB, OSX 10.7.3
Crashes everytime I try to start it.

Mac Mini late 2009 8GB, OSX 10.7.3
Works perfectly

MBP 15 2011 8GB, OSX 10.7.3
Works perfectly

txg about CameraBag 2, v2.0.1