Cinema 4D: Material across multiple objects - Problem

I'm a definite Cinema 4D bunny, so any quick help would be greatly appreciated. I came across this thread, which to a point solved my problem...

http://forums.creativecow.net/thread/19/862121#862121

I have grouped the objects and applied the material successfully, except when I render the scene, the material disappears.

I'm guessing I've done something retarded at some point that has turned something off (or on, I don't know), any ideas?

Cheers

It looks like my random clicking to make it work made it not work. I went through the process again, this time actually paying attention, and it works a treat. Thanks for offering the help, much appreciated.

Case closed