Try to update the board to the latest firmware version, as it solves a lot of these small problems.
You can also try what the above-poster said, and try forcing the stick to read on either PS3 or Xbox mode. Hold 1p (button in top-left corner) while plugging it in to force it to ps3 mode, or alternatively, hold 2p (the button to the right of 1p) while plugging it in to force it into Xbox mode.
Yes. I refer to it as 1p and 2p because not everyone uses the ‘jab’ on the staggered layout. Some guys prefer the straight layout, which makes jab on the 2p button. Confusing, I know. Blame the lack of standardized button terminology.
Because nobody ever, ever, checks other threads or uses the search function.