If you have been pressing buttons, there's an excellent chance that you've gotten some turned off or on that shouldn't be. Try this:
Turn off all the buttons, so that the floor is completely dark and none of the buttons is lit.
Then press the 2, 3, and 5 button in that order.
Now you should see a definite
shadowy path that starts at about 2:00 (if the room were a big clock) and winds to the center. This is what you walk on, and be very careful not to go off into the white areas. I actually used "walk" here, rather than "run", and in a couple of tricky places, I took it one step at a time...
