I just took a look at the release notes for version 20 at: http://sourceforge.net/project/shownotes.php?release_id=31875 And it says: Release Name: 20 Notes: Requires Python 2.0 Shouldn't that be 2.1? or 2.0 or greater? -Chris -- Christopher Barker, Ph.D. ChrisHBarker@home.net --- --- --- http://members.home.net/barkerlohmann ---@@ -----@@ -----@@ ------@@@ ------@@@ ------@@@ Oil Spill Modeling ------ @ ------ @ ------ @ Water Resources Engineering ------- --------- -------- Coastal and Fluvial Hydrodynamics -------------------------------------- ------------------------------------------------------------------------