Another issue that sometimes afflicts the N800 (not N810): After Ctrl-Space or some such (from USB or BT keyboard), you get a narrow, completion-only bar designed for the N810's thumbboard. It could be helpful, but the trouble is, after disconnecting the external keyboard, it locks into that mode; stylus-tap, finger-tap, or d-pad enter all bring the completion bar (but no keyboard) up. The fix for this one:
Yep, my N800 thinks it has a slide, and that slide is open.
Seems like a script that sets keyboard-attached and slide-open both false belongs in powerlaunch, osso-statusbar-cpu, personal menu, and/or command-navigator.