Yeah the invible wall bug is really annoying, and for the linux version of 0.8.2 it's still there. The best way to get rid of them, I found, is to go out of full screen and back into it (or vice versa), and somehow the walls disappear. On another note that I've been wondering is if it'd be possible to remap my keyboard so that the ` key will act as mouse button 1, etc. I've tried doing this in linux (since mice click very loud) via xmodmap without any success. Just wondering if it'll be possible under Rio. 
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