I just gave my son ROBOLAB (2.5, with USB tower, in the Team Challenge set) and can't get it to run on our Power Macintosh G3 running Mac OS 9.2.1. When I bring up ROBOLAB, the "ADMINISTRATOR" button is not enabled, so I can't download firmware to (...) (23 years ago, 27-Dec-01, to lugnet.robotics.rcx.robolab)