Random log outs when playing Armagetron

[BigFoot13]

Hi, second question here,

For some reason, whenever I play Armagetron (an OpenGL 3D Tron Game), I randomly get logged out after awhile. I don't get an error message, I just get taken to the log in screen. It does this every time I play. I also notice that if I play and then exit the game, it will log me out eventually even though I quit the game. This seems very odd. I am using the XFree86 driver on a SiS card on my Acer Aspire 3000:

Graphics Card (IGP):
  Brand: SiS 760
  Interface: AGP (Integrated)
  Bus Speed: 8x
  Chipset: SiS Mirage 330
  Core Clock: 166 MHz
  Pixel Pipelines: 4
  Memory Type: DDR
  Memory Width: 64 Bit
  Memory Clock: 400 MHz (200 MHz x 2)
  Onboard Video Memory: 32 MB
  Total Video Memory: 128 MB (Shared)
  Max Resolution: 2048 x 1536 @ 75 Hz
  RAMDAC Clock: 350 MHz
  Outputs: VGA
  SLI: No
  VIVO: No
  Overclocked: No

I am running it on medium settings at 1024 x 768 (I can post exactly what they are if necessary) and am getting 30 - 45 FPS. The game itself runs fine, it occasionally "hiccups", but it is no big deal. Its the fact that it just suddenly terminates that is very annoying. I would greatly appreciate any suggestions and help to resolve this.

Thanks,
BigFoot

[BigFoot13]

I am bunping this thread with additional info. It doesn't happen with any other game, just Armagetron. Game that work fine include: SuperTux, TuxPuck, Pinball, Pingus, EnemyLines3, Starfighter, Airstrike, KETM, KBall, and KQ.