Scratch

Hey all.

I've searched plenty on these handy forums and haven't been able to find a tutorial or help on how to create an automatic side scrolling.

What I am aiming for is creating an R-Types type of game. It's a space game with the ability to move your sprite over the screen with the background moving in the background too (stars etc).

How do I move my background (star sprites) automatically when my game starts so that there is no lag, overlapping and other issues which make it look bad.

Thanks in advance for any help given. Much appreciated!