xbox 360 joystick problems

[ScrubMasterr m8]

hey guys i bought a xbox 360 controller recently and i was wondering why i have to move the joystick all the way over for it to turn my bars, on my ps3 controller i was able to move it a tad and it would turn, if anyone could help me out that would be muchly appreciated as this is really pissing me off. thanks!!

[Wahlamt]

Is it a Microsoft brand one or is it just a random cheat brand? Some cheaper brands does not support the interpolated movements, so it's basically all or nothing as on keyboard, except in shape of a controller.