I am trying to use the Interaction Energy Script that has been posted by Stephen Todd and Jason DeJoannis dated April 22, 2013.  This script runs fine on the client but generates an error message when run on a server.  Specifically, the following is generated when no changes are made to the input arguments through the GUI:

Using OFF forcefield --Last_frame

Interactions between sets A and B

Calculating interaction energy from frame 1 to 11 on (100)_2TPA_h2o trajectory

Calculating energy for frame 1

Forcefield Library Manager: Can't find forcefield (/--Last_frame) in Forcite.Energy (function/property "Run") at -e line 176.

Can Stephen or Jason help?

Anthony