The game starts up fine, but upon entering the game world, an error dialog is presented, telling you that "Can't activate the GL Rendering context". After pressing "OK", the game finished loading, and seems to work, except for missing graphics on the landscape (which, in this game, is pretty much everything).
This makes the game more or less unplayable.
At the same time the error is presented, the following line is printed on the console:
err:x11drv:error_handler XERROR: code 161 request 151 minor 5 xid 0040003b
