Issues for first time player (version 2.1.2) on Linux

[Neuromancer]

I'm using Ubuntu Intrepid (I believe that's 8.10) on a laptop with 1280x800 resolution. I compiled Warzone2100 v2.1.2 according to the Linux compile guide (and dependencies) and have come across annoying issues when running the game:

1) At 1280x800, sometimes the screen goes blank at the game lobby. No such problem at other resolutions (ex: 800x600)
2) At 1280x800 In gameplay (I've only gotten to the tutorial), scrolling causes an annoying sync artifact. No such problem at other resolutions.

I'm using glx drivers for the Nvidia GPU (which has 256MB dedicated VRAM) and compiz. I'm running other games like Savage 2, WorldOfGoo and Scorched3D at 1280x800 without any problems. What could be the cause?

[jaakan]

Do both happen with compiz turned off?