Kev,
Are you going to make a 4.0 compatible scene file for this one? Also, what's the skinny on future tutorials...are they all going to be saved as 4.5 files or can it just be a given to save all tutorial scene files, shaders, etc. in both 4.0 and 4.5 formats?
--Pete
"Terminat Bora Diem, Terminal Auctor opus."