I used to think that was normal, that the snake was just getting some snakey exercise. Alas, it's just about the opposite of what they should be doing: Curled up, out of sight.
Here's the thread I started earlier today about my discovery of how important hiding and its sense of security is to a BP: http://www.ball-pythons.net/forums/s...ad.php?t=99253 It doesn't mention the sides of the tank also being covered, but I did that too, along with adding the newspaper. It has made a world of difference!