The reason the new 3.69 drivers dont work in UT, is cause it uses D3D 6.0 not D3D 7.0. Just download the new Beta D3D DLL for UT.
Get it here: http://unreal.epicgames.com/files/d3ddrv.dll
Why it isnt working with other D3D games, I don't know, probably the same reason. Just go back to Detonator 3.66 for win2k or wait for a fix for your game. Now, if could just get Live!Ware 3.0 to work...
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Mr Marbles
bremvag@online.no