I just download and extracted Unreal Tournament (the first one) Demo. When I go to start it via ~/ut/System/UnrealTournament I get the following:

[georig1\ 14:16:08\ george\ ~/utdemo/System]$ ./UnrealTournament
cp: cannot stat `/home/george/.utconf': No such file or directory
Xlib: extension "XFree86-DGA" missing on display ":0.0".
Can't find file for package 'GlideDrv'
Aborted
[georig1\ 14:16:16\ george\ ~/utdemo/System]$

I have the latest nvidia drivers installed on a gentoo stage 1 install. All my other games including Q3, AA, Half-Life1, ET, and WoW work just fine, but I'd like to try this game out.. I have looked around online for this error but I came to dead ends with people having problems almost unrelated to this, or if I do find a solution, it does not work. What should I do? Yes I have my agpgart, via_agp, and nvidia modules loaded.

Not sure but it looks like it's configured to use Glide renderer. Try OpenGL edit your UnrealTournament.ini and look for GameRenderer line in [Engine.Engine] section. Change it to:

GameRenderDevice=OpenGLDrv.OpenGLRenderDevice

Also you may want to look at:

WindowedRenderDevice and
RenderDevice

Mine is set like:

WindowedRenderDevice=SDLGLDrv.SDLGLRenderDevice
RenderDevice=SDLGLDrv.SDLGLRenderDevice

PS: backup your original .ini first

Thank you for the help but it did not succeed. I think I'll steal a line from UT2k4 if it is somewhat the same.