Although I don't use these packages myself, the lab I work in has both
Sybyl and Frodo. Sybyl especially has been giving trouble in recent days
(which means that I don't get my e-mail promptly). Anyone interested in
the gory details could send e-mail to Craig Kelley in this lab, who
has been working with them
George
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e-mail to craig%crhl at eng.ohio-state.edu
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