Getting an error when quitting an app using a call 'self.master.quit'?

[G. Willoughby]

> which Python version, versions of extension modules and where you got
them.
> And if these were built in debug mode, and the stripped (or whatever the
> Windows equivalent of that is).

ActiveState Python 2.1 (#15, Jun 18 2001, 21:42:28) with PIL installed.

This problem happens with every call to self.master.quit in all my programs
:(

--G. Willoughby