Spring RTS Engine

Basically I have two problems. With 3D trees enabled, maps won't even load past generating trees. With it disabled, I can start a game, but it will just crash after a few seconds. I've tried different mods and maps and AIs, and I've tried turning all my settings to lowest and highest.

Computer specs:
Core 2 due E6750
Radeon HD 4870
2GB ram

Vista ultimate, UAC off, virus scanner off, settings lowest, ground decals off.

http://pastebin.com/f6af8940 - infolog.txt with 3D trees on.
http://pastebin.com/f651ac957 - infolog.txt with 3D trees off.

EDIT: It seems simply updating my video drivers from version 8.7 to 8.8 fixed all the problems, something I wouldn't have thought of for a while without the handy people on #main. Thanks guys!

For the record - E8400 and a Radeon 4850 worked fine on 8.7 catalysts, on XP 32-bit.

Just make sure you don't have adaptive antialiasing enforced in your driver. With that on it crashes for me in tree stage...