Im using version Indie 2.6. I put in a simple terrain using the terrain engine, placed in a 1st person camera, double checked its position. When I hit play the camera falls through the terrain. So either the camera or terrain has no collider? I believe terrain comes with its own collider does it not?
I did some checking, I placed a box in the scene, set a Rigidbody on it and let it fall, it went through the terrain. I have sent this in as a bug report with sample file.
Has anyone else had this problem?
I also removed my version, got a fresh copy and reloaded it.