turns during taxiing

I made some mistake..and so I reinstall fsx. Now I'm re-doing all my missions again, For some reason no matter what aircraft I'm flying I always seem to have problem just to make a simple right or even a left turn on the ground. Although I can see the controller moving to the left or right in the virtual cockpit put the aircraft is rather stay in a straight or turning slightly. Can anyone help me out...
I just bought the joystick two weeks ago, so don't think that's the case. will it?
