Michael, None of the official releases have Amber trajectory support (although the mac 0.84 beta may have an early version of this code). I'm planning on another release near the end of September.
If you can build from the CVS repository, then you can use the code today: (1) make sure that your trajectory and topology files have the same prefix and end in .top and .trj respectively. Also make sure that your topology exactly corresponds to the trajectory file (you may need to create a new topology file if you've deleted some atoms from the trajectory). (2) Now load them: load parm.top load_traj parm.trj help load_traj has some additional options, such as start, stop, average, interval, selection... So long as trajectories are generated from the same topology, you can concatentate them as follows: load_traj part1.trj,parm load_tram part2.trj,parm load_traj part3.trj,parm For now, you'll probably want to preprocess your trajectory using ptraj in order to center, average, and perhaps to remove waters. And you'll need to create a new topology file reflecting any atom deletions. Tom Cheatham and I are talking about trying to fold a copy of ptraj into PyMOL, but don't have any definite plans yet. Cheers, Warren -- mailto:war...@sunesis.com Warren L. DeLano, Ph.D. Informatics Manager Sunesis Pharmaceuticals, Inc. 341 Oyster Point Blvd. S. San Francisco, CA 94080 (650)-266-3606 FAX:(650)-266-3501