GeeGee, I did a search for this puzzle and found a reply that Chrissie made a while back for another Boomer:
You have 3 rows each with three crystals which you need to light up to open the door? If so, hopefully it's not a random puzzle & clicking on the crystals in this order will help:
Centre, top left, bottom left, bottom right, top right.
Hope that does the trick for you -
