On Nov 10, 11:13 am, Scott David Daniels <Scott.Dani... at Acm.Org> wrote: > > Well, what kind of computer, what version of everything (OS, Python, > VPython), what display card, .... Windows XP Professional Version 2002, Service Pack 2 1.4GHz, 512MB ATI MOBILITY RADEON 9000 Python 2.5, VPython 2.5 gsal