There an option in the game menu for different "types" of shadows, I seem
to
remember one looking very much worse than the other.



Yes, there are three types (None, Simple and Volumetric). It's the
volumetric one that makes the problems. I switched back to simple shadows
and now it is at least playable but it looks really bad for todays
standards.
Has anyone got the volumetric shadows in JK2 working with a Radeon and
Catalyst?

Chris