I have a Lenovo X230 tablet and as of this morning it is exhibiting a very odd problem with the UltraNav system (both touchpad and trackpoint). Upon starting up the machine, they both work normally, right up until the UltraNav utility loads, then they both quit working. The UltraNav utility shows them both as being disabled, and the option to enable them is grayed out. Drivers all show as working normally. It appears that the utility has suddenly decided (as of this morning) to forcibly disable my pointing devices!
Notably, no recent software updates. Nor any settings changes. It was working perfect last night when I shut it down. I turned it on this morning, and here I am! I've rebooted, done complete shutdown/restarts, turned the UltraNav icon on/off, flipped the screen around and tried to reload drivers (it fails, throwing a generic "aborted" message). Still no luck. :-(
Note that the touchscreen and the stylus both continue to work.