> >IDE? Maybe you're talking about something different, but I thought >that "VPython" referred to > www.vpython.org >though I am aware of some other things with "V" in the name (such as >VTK) VPython (the one you cite) comes with its own modified IDLE to permit use of Tk more successfully than standard IDLE does. >Norton very well could be causing problems. Agreed. Kirby