gravity/physics suddenly stops working. How do I fix it?

I’m making a marble game and I have a demo built but for some reason, whenever the ball stops moving, gravity and all physics stop effecting it. So I can’t wait for the ball to calm down before I move an axis. How do I fix this issue?

For those wondering what I mean, here is a link to the game.

http://davidmonticchio.com/components/Games/unity/LYM_Demo.html

BTW: I put the icy physics on the ball. I found it worked the best for what I needed done.

PS: also, any way to get the horizontal scroll to stay at the mid point on start up? I put speed = 50.0; but it always snaps to 0.0

reduce the sleep velocity of the ball to 0 or call rigidbody.WakeUp on the ball when ever you start rotating the thing