For both Gish and Polynomial - Space of the Music, the "A" key seems to be being held down. This results in Gish being completely unplayable as the leftward movement is unstoppable, so you can't do the first level, and Polynomial being nausea-inducing as there is a constant leftward roll. This does not happen with any other game (warsow, xonotic, dungeons of dredmor, oil rush, etc), just with these 2, but it's not specific to the game if it's happening on 2. Does anybody know what could be going on?
For some background, I'm using Ubuntu 11.10 amd64, with an nvidia geforce gt540m enabled using bumblebee (due to optimus).
EDIT: Managed to find my own answer: It's the gamepad inputs that seem to be doing strange things. If anybody gets the same problem, go into the controls and strip out all the gamepad/joystick inputs.