adam@marvin ~ > export DISPLAY=":0.0" fgfs 
adam@marvin ~ > fgfs
Error reading properties: 
Failed to open file
 at /home/adam/.fgfs/autosave.xml
 (reported by SimGear XML Parser)
RenderTexture Error: Couldn't find a suitable pixel format.
  Model Author:  Unknown
  Creation Date: 2002-01-01
  Version:       $Id: c172p.xml,v 1.17 2006-03-13 15:27:14 ehofman Exp $
  Description:   Cessna C-172
open /dev/[sound/]dsp: Device or resource busy
Audio initialization failed!
   There was an error opening the ALC device
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Failed to load wav file: 
 at The operation was invalid in the current ALUT state
Error loading MK VIII sound sample "application-data-base-failed.wav": Failed to load wav file: 
 at The operation was invalid in the current ALUT state