Build problem in Unity Pro 2.6

I am having a problem making builds of my game suddenly, and can’t figure out if it is something I have changed or if it is related to me recently upgrading to Pro and importing the new assets, and some other changes I made.

When I make a stand alone build now, I get a screen with none of my On GUI stuff at all, just the camera looking at the terrain. Everything works perfectly in the editor before making the build with no error messages at all. The camera is also stuck at whatever positions I left it facing in the scene view in the editor (my game has the camera following the main character on a track, so where the camera is in the scene view shouldn’t matter, when you play the game it just starts following the character along the track).

This may well be some mistake I have made that brought this on, but I really wanted to check and see if anyone else has had any build issues in 2.6.1f3 before I start pulling things apart too much. In the past, when I have a functioning game in the Unity editor with no errors, I just say build and run and it works great. I am really confused at the moment as to why this is no longer working. Thanks!

This seems fixed now, I just deleted the pro assets folder then reimported it. That seemed to take care of it.