Hey - turns out IRC is out and something a little more modern has taken it's place... A little thing called Discord!
Join our community @ https://discord.gg/JuaSzXBZrk for a pick-up game, or just to rekindle with fellow community members.
open: My Documents\My Games\Unreal Tournament 3 Demo\UTGame\Config\UTEngine.ini
Change the line
bInitializeShadersOnDemand=False
to
bInitializeShadersOnDemand=True
Edit:*RESTART BEFORE TRYING TO RUN THE DEMO AGAIN*
Worked for me. Now I'm trying to find a way to make the graphics look decent...
found @ google
btw UT3 ist a good chance to relife the league
Result failed
at .\Src\D3D9Device.cpp:629
with error D3DERR_INVALIDCALL
Works now, but pixelattack Oo it laggs like hell and looks crappy...