Bastion hangs / no input when focused

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https://bbs.archlinux.org – Hi all.I just put together my first Arch desktop yesterday, and have gotten most things working pretty smoothly, but Bastion still  evades me.When I launch the game it will sometimes load all the way to the main menu, sometimes stalling somewhere before. It stays stalled until I alt-tab to change focus to another window, at which point it immediately picks back up as though nothing had ever happened. If you then click back on anything there it hangs once more. You can go back and forth with it all day and it will continue to misbehave in this manner. When focused on another window I can p (HowTos)