Doom 3

[okubo]

hola, he instalado doom 3 en mi ubuntu dapper y me lanza el siguiente error:

~$ doom3
DOOM 1.3.1302 linux-x86 May 12 2005 14:56:44
found interface lo - loopback
found interface eth1 - 192.168.0.10/255.255.255.0
------ Initializing File System ------
Loaded pk4 /usr/local/games/doom3/base/game01.pk4 with checksum 0xe9d5adcf
Loaded pk4 /usr/local/games/doom3/base/game02.pk4 with checksum 0x80401dd2
Loaded pk4 /usr/local/games/doom3/base/game03.pk4 with checksum 0x351c23e8
Loaded pk4 /usr/local/games/doom3/base/pak005.pk4 with checksum 0x8ffc3621
Loaded pk4 /usr/local/games/doom3/base/pak006.pk4 with checksum 0x95b65ab
Loaded pk4 /usr/local/games/doom3/base/pak007.pk4 with checksum 0x666bdb3c
Current search path:
/home/alberto/.doom3/base
/usr/local/games/doom3/base
/usr/local/games/doom3/base/pak007.pk4 (38 files)
/usr/local/games/doom3/base/pak006.pk4 (48 files)
/usr/local/games/doom3/base/pak005.pk4 (63 files)
/usr/local/games/doom3/base/game03.pk4 (2 files)
/usr/local/games/doom3/base/game02.pk4 (2 files)
/usr/local/games/doom3/base/game01.pk4 (2 files)
game DLL: 0x0 in pak: 0x0
Addon pk4s:
file system initialized.
--------------------------------------
Unknown command 'vid_restart'
idRenderSystem::Shutdown()
Sys_Error: Couldn't load default.cfg

alguien sabe solucionarlo?