I also believe that you have to have a tall pole of some kind (it doesn't have to be visible) made of a level block to set the area limits for the physics engine.
An alternative would be to just engulf the level in a skycube.
Last edited by MrCode; 07/16/0701:56.
Code:
void main()
{
cout << "I am MrCode,";
cout << "hear me roar!";
system("PAUSE");
}