After installing ut2004 from cd using linux_install.sh I get:
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$ ut2004
<splash screen>
ObjectProperty XEffects.xPawnGibGroup.PrecacheContent.Level: Serial size
mismatch: Got 32, Expected 15

History: 

Exiting due to error
--
Log: Log file open, Sun Aug 15 05:22:17 2004
Init: Name subsystem initialized
Init: Version: 3236 (127.29)
Init: Compiled: Jun 20 2004 09:32:48
Init: Command line: 
Init: (This is Linux patch version 3236.1)
Init: Character set: Unicode
Init: Base directory: /opt/ut2004/System/
Init: Ini:UT2004.ini   UserIni:User.ini
Init: Build label: UT2004 Build UT2004_Patch_[2004-06-11_16.51]
Init: Object subsystem initialized
Warning: Missing Class Class Editor.TransBuffer
Critical: ObjectProperty XEffects.xPawnGibGroup.PrecacheContent.Level: Serial si
ze mismatch: Got 32, Expected 15
Exit: Executing UObject::StaticShutdownAfterError
Exit: Exiting.
Log: FileManager: Reading 0 GByte 14 MByte 400 KByte 370 Bytes from HD took 2.94
6739 seconds (0.249628 reading, 2.697110 seeking).
Log: FileManager: 0.000000 seconds spent with misc. duties
Uninitialized: Name subsystem shut down
Uninitialized: Log file closed, Sun Aug 15 05:22:22 2004
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I get the same error w/ 3120 & 3236, when using gentoo's emerge to install I get
a error about a bad install or overheating hardware on start up instead.

To see if it was my setup, I emerge ut2004-demo, it works flawlessly (ET & NWN
also do).

I have searched for solutions to my problem but have yet to find any advice on
what to do/read/hack/whatever. Odds are its me but wtf I can't seem to find a
clue. Please give me a Bone here. I am pulling my hair out!

Gentoo 2004
Asus avn8x-d (nforce2 chipset), AMD 2500+, 512MB PC2700
Nvidia Geforce FX5950 Ultra, 6111 drivers
2.6.8-rc4 (4kb stacks)
udev, alsa (snd_emu10k1), nptl enabled