Emulator

I'm using a USB gamepad to play Zelda: Twilight Princess and the left analog stick isn't working properly. I can only move Link diagonally, up-right or down-left. It's the same case even in the first screen which asks for your name - the letter selection only moves diagonally. I've tried tweaking the config a bit but no luck.

I'm running Dolphin 32-bit buil 4771 with nJoy 0.3 on a Windows XP SP3 machine.

P.S. The Gamepad isn't Logitech or anything, it's an unheard of brand, but the drivers are up-to-date and it's fully functional with other games, even emulators of other consoles.