Normally, on the main screen, you do not see the servo indication. You do see the positions of the trims, but not the positions of the sticks. When you press the "SERVO" button, then you get the channel display that shows how they move when you move the sticks.

We don't know what you saw the first time your system powered up. The only thing we can think of is that you accidentally hit the "SERVO" button when you turned it on the first time.