Hi Lou,
This is what fellow member Maverick said on an older thread, hope it helps:
When the 1st star lights up, click on it and the 2nd star will flash. Then click on 1 & 2 to get star 3. Click on 1, 2 & 3 to get 4. Click on 1, 2, 3, & 4 to get 5. Keep clicking starting from one and continuing until you have all 12. The rune is then destroyed. The computer will repeat each step to verify your accuracy.
If you click on an incorrect star the puzzle will reset.

and keep us posted.