AutoDock questions ?

[Alexander Klinsky <a9004590 (- at -) unet.univie.ac.at>]

 Dear Colleaques !
 We are currently doing some docking analysis on HIV Reverse Transcriptase
 inhibitors and are facing some problems while using AutoDock 2.4:
 First, does anybody know which force field autodock uses to calculate
 energies and so on.
 This question arises because we have some crystall structures and are
 able to reproduce these data with Autodock but when we rotate and/or
 rotate the ligand we cannot reproduce it anymore `????
 Can somebody help please
 Kind regards,
 Alexander Klinsky
 Inst. of pharm. chemistry
 University of Vienna
 Austria