[Nero_3D]

Do you really want a random message (except the current one) or do you want to show all messages in random order?

In the first case that could happen

Random Message 1
Random Message 2
Random Message 1
Random Message 2
Random Message 1
Random Message 3

Or do you want to show all messages in random order and than repeat ?

Random Message 1
Random Message 3
Random Message 2
Random Message 3
Random Message 1
Random Message 2