Have you checked the box on the left wall and saw the color needed to adjust the box on the right wall?
The solution to that is in the paper given to you by Zetais. It's in the inventory.
Also it is on the picture in the walkthrough under the power room puzzle portion and also posted in Black Crystal solution.
Check the compass to see what direction you are standing and enter the number stated in the walkthrough:

I didn't make a saved game on this puzzle - sorry.
Enjoy the game.