Myth 3 White Screen - I've fixed this before!

[William Wallet]

But I don't get it.

Back in 2001ish, I downloaded the Myth 3 demo and couldn't run it due to white screen problems. E-mailed a MumboJumbo guy who helped me out by pointing me to GameSprockets 1.5. I got that and the demo worked fine.

However, installing Myth 3 Full Version has been a little different, I've put said GameSprockets on again and the game is giving me white screens.
I am unable to find any higher kind of GameSprockets around, and if I just go and copy better ones off of Cid's iMac I still get nothing working.

Any thoughts? Should I not be running OS9?
It just seems odd because I thought I fixed this.