I'm running Armadillo Run v2.1.0 (Linux), and I'm seeing some strange rendering bugs. The most noticeable is on the main menu (taken after allowing the animation to run to completion):
I've disabled Compiz, so that doesn't seem to be causing the problem. The tutorials and levels 1-6 run flawlessly, but level 7 has problems (not as severe as on the menu, but still make the level rather unusable). I have some screenshots of this, but first I wanted to check if this is a known bug?