If the windows are simply placed outside the screen (a plausible hypothesis given the symptoms), can you use sawfish-client to move them back where you want them?
(I'm not on a Sawfish machine at the moment, but I'll happily post some Lisp snippets when I am.)
Are your screens different size? http:// www.nabble. com/Sawfish- Gnome-Xinerama- dropping- windows- t4652994. html seems to be about this problem, too; alas, no actual fix in sight yet.
If the windows are simply placed outside the screen (a plausible hypothesis given the symptoms), can you use sawfish-client to move them back where you want them?
(I'm not on a Sawfish machine at the moment, but I'll happily post some Lisp snippets when I am.)