Problem with xdoom

[Rajesh Radhakrishnan <rradhakr@email.uc.edu>]

Hi,

I downloaded doom from cnet and I get the foll error 
message when I run it,
                          DOOM System Startup v1.8                          
V_Init: allocate screens.
M_LoadDefaults: Load system defaults.
Z_Init: Init zone memory allocation daemon. 
W_Init: Init WADfiles.
        adding /usr/games/doom/doom1.wad
        shareware version.
M_Init: Init miscellaneous info.
R_Init: Init DOOM refresh daemon - [...................]
P_Init: Init Playloop state.
I_Init: Setting up machine state.
Could not start sound server [sndserver]
D_CheckNetGame: Checking network game status.
startskill 2  deathmatch: 0  startmap: 1  startepisode: 1
player 1 of 1 (1 nodes)
S_Init: Setting up sound.
HU_Init: Setting up heads up display.
ST_Init: Init status bar.
Error: xdoom currently only supports 256-color PseudoColor screens


I have a S3 video card with 4MB video RAM. I run my monitor at
1024x758 resolution.

Thanks
-Rajesh