Ha, I just bought A8 and had the same problem, floating. I finally found a demo with code in Aum 102, called Events, and made the world a little bigger so I could start programming a level. After all you can import your own textures to the cube. I scoped down and made the walls a blue texture with the sky flag set, and added the code to use a sky cube. The events level is a cube too. And the easy to understand code has several built in events to adapt to your purposes. I know you want to know how to fix the floating, sorry I can't help with that. I've been around a while but am not great at code, I just enjoy building levels. Just thought if you haven't seen the Events code in AUM 102 its simple and worth looking at.