I encountered this in Karmic upgrading to 3.5.4+nobinonly-0ubuntu0.9.10.1. In this case it did not prompt me to restart as I believe it did in the past and hitting Ctrl-n before restarting produced error windows that were visible in the taskbar but not as a window on the screen, clicking them had no effect.
I encountered this in Karmic upgrading to 3.5.4+nobinonly -0ubuntu0. 9.10.1. In this case it did not prompt me to restart as I believe it did in the past and hitting Ctrl-n before restarting produced error windows that were visible in the taskbar but not as a window on the screen, clicking them had no effect.