Ok well for starters 85 Hz is more demanding than 75hz, and not really necessary with UT...
You should be able to run it Extreemly well with that system. What maps are you refering too when these drops occur ? On most CTF maps I average 80-120 FPS and I have a Geforce 2 GTS and PIII 866 !!
For starters you need to be running UT version 436.
You can try both Direct3D and OpenGL, however it is advisable you download this file if you want to use OpenGL:
<A HREF="
http://www.rippleit.co.uk/download/opengldrv.zip" target="_new">OpenGL Update</A>
As when the game was released the OpenGL code was still very experimental for the engine and it doesn't perform as well as it should without it !
These are my UnrealTournament.ini settings for OpenGL :
[OpenGLDrv.OpenGLRenderDevice]
RefreshRate=75
DetailTextures=1
UseTrilinear=1
UseS3TC=0
UseTNT=0
LODBias=0
UseMultiTexture=1
UsePalette=1
UseAlphaPalette=0
Translucency=1
VolumetricLighting=1
ShinySurfaces=1
Coronas=1
HighDetailActors=1
MaxAnisotropy=0
AlwaysMipmap=0
UsePrecache=1
SupportsLazyTextures=0
Replace the section in your UT.ini with that (It is bigger) and it should perform better ! [REMEMBER - Backup your ini incase something goes wrong]
Points to note: Set your Vsync to true in the UT settings to turn it off ! Its back to front for some reason ?
The High detail will punish it ! I run on high textures and medium detail models... this helps my performance and its not really like you get too look at the enemy for too long before you blow them away !!
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I personally use OpenGL as I find it performs better (But not by too much) and I think it looks better too. I am not sure why yours is dropping so low ? But expect some drops when a great deal of action is going on.
Tim
I can call you Betty, and Betty when you call me... You can call me Al