How do I open the door by the three statues

Hint 1 of 8:

Read your computer Grail Diary.

Hint 2 of 8:

It shows you the order that the statues have to be in to open the door.

Hint 3 of 8:

If you notice what happens when you press the panels, you can get them...

Hint 4 of 8:

in the right order.

Hint 5 of 8:

(When I played, pushing the 3rd panel also moved the 1st, and pushing...

Hint 6 of 8:

the 1st moved the 2nd.  Pushing the 2nd panel only affected the 2nd.)