I just built the Mac OS X python with frameworks & Tkinter out of CVS and installed idle as tony suggests (http://tony.lownds.com/macosx/tkinter.html) If I type the following into the resulting IDLE Python Shell window, Python crashes: --snip-- def foo(): print "hello" import thread thread.start_new_thread(foo,()) thread.start_new_thread(foo,()) --snip-- ...um... is it supposed to work? -- -Jas