I am befuddled. I've re-installed everything I can think of, but I still get this behavior: I start up Pythonwin. Sometimes the interactive window shows the copyright stuff; sometimes it doesn't; In any case, I can't close it by clicking on the X button at the top right of the main window. The interactive window seems to have the focus monopolized. I have to go to the task manager to kill it.
As for checking the "application path", I don't know what that means. I am rather disappointed with this turn of events. -- http://mail.python.org/mailman/listinfo/python-list