[away3d] All I see is a small white screen?

[J87513]

I'm really new to away3d and am having some trouble trying to set it
up. I've set it up so away3d_2_3_0 is in the same file as Adobe Flash
CS4, but I don't think that flash is finding the away3d support files.
When I download the sample files (.as) from flashmagazine.com all I
see is a white screen when I test the movie. Any advide? Anything
would be of help. Thanks, J.