Penguinisto: I didn't complain mainly about Tkinter, since I'm on a WinXP machine, but the API could REALLY be better. That CL choose not to use third party GUI toolkits is a reasonable decision, as you said: that it's broken on the Mac is not their fault and something out of their sphere of influence. Anyone tried to install wxPython in the site-packages directory of Poser? Hmm, something to do, if I have some spare time.