Short story: bizarre problem with a corrupted popdown list in Firefox and Mozilla on unix systems. I'm trying to render some unicode strings in a popdown, basing my code on the formpost2.py example in nevow 0.4.1: class IMyForm(annotate.TypedInterface): def composer(self, composers=annotate.Choice(choices=choices, label="Choose a composer", valueToKey=unicode, stringify=unicode, keyToValue=unicode, unicode=True), ): pass composer = annotate.autocallable(composer) The full code is here: http://members.cox.net/davecook/pythonstuff/test.py This seems to work great. Well, at least the unicode strings seem to roundtrip from the server to the browser, and there aren't any encoding tracebacks. That is, it works great in Safari, Konqueror, IE6, and win32 Firefox, but with Firefox (1.0.2) on OS X and Linux and Mozilla (1.7.6) on Linux the popdown gets corrupted and clicking on the popdown button is not effective, you have to click to the left of the button to popdown the menu, and the menu is misaligned. The scrollbar in the dropdown list even disappears on Linux. Unless my code is doing something nasty, I'm guessing this is a Firefox bug. So the next question is, how do I report a bug like this? Will they take a nevow script as a test case? Thanks, Dave Cook