DOOM Problems

[Hansel R. Johnson]

I'm having problems when I try to start DOOM.  I need to start playing
some games, I've been using Linux for too much serious work :).  Any
hints would be appreciated.  This is what I get:

hrj:~/install/doom/x# linuxxdoom 
 DOOM 2: Hell on Earth v1.8                           
 V_Init: allocate screens.
 M_LoadDefaults: Load system defaults.
 Z_Init: Init zone memory allocation daemon. 
 W_Init: Init WADfiles.
	 adding ./doom2.wad
	 commercial version.
 ===========================================================================
		     Do not distribute!
	      Please report software piracy to the SPA: 1-800-388-PIR8
   ===========================================================================
									      M_Init: Init miscellaneous info.
R_Init: Init DOOM refresh daemon - [...................]
P_Init: Init Playloop state.
Error: R_TextureNumForName: SW1BLUE not found
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hrj:~/install/doom/x# 

Thanks,
Hansel
hansel at cc.gatech.edu
gt6770b at prism.gatech.edu