xbox 360 controller issue

[andrewb]

It's quite simple. In many games, right trigger will not be registered like at all...only when I press it REALLY fast. In some games it works perfectly fine like Dark Souls or Batman Arkham city. But in other games (Guacamelee, Psychonauts) the trigger just refuses to work :/ Also it works great during calibration.

One last thing that I find quite interesting is this...When I try to play Just cause 2 with it, there are 2 possible functions for right trigger, it's either Fire or Dodge. When I use it to fire, it works beautifully but when I set it to Dodge (roll) it doesn't.
I mean why would this happen...I'm getting quite desperate, I bought the controller because I thought many games support it so it wouldn't be so much hassle getting it to work. Now I might just go back to the old controller and 360ce :(

It is wired 360 controller, I am not using any drivers for it and am on Windows 8.