I have the same problem with VW 10.5.1 in OSX 10.3.5. I had made some nice scripts that rotated selected objects interactively around a clickpoint by steps, left or right, according to pushing the '-' or '+' key. Another script moved a person on a particular stair, to see interactively the free headspace. There was also a script that showed in the message palette the ascii-code of every pressed key with or without modifier keys. Unfortunately these scripts are not usable anymore for me. I would be very happy with a solution for this problem.