I have the Maemo 5 SDK installed on a laptop running Ubuntu. All was running smoothly, but I foolishly upgraded to the most recent version of Ubuntu. Now my Maemo 5 SDK no longer works properly. The scratchbox environment seems fine, xephyr works and I can run the desktop stuff within scratchbox. But lots of the Hildon widget set no longer works properly. Pulldown menus don't show their contents. Mouse clicks in scrollable windows are ignored. Check boxes don't update, etc. Does anyone know how to fix these issues? I'd be happy to reinstall an old version of Ubuntu to fix the problem - does anyone know of an Ubuntu version with which the Maemo 5 SDK is fully compatible?