A common error occurs when people calibrate the joystick in the game. When the panel comes up that tells you to move the sticks, wheels, rudders and so on, DO NOT press the OK button until you have done those operations.
If you have multiple joysticks, you will need to manually configure them. As an example, I will explain how to correctly setup rudders in Aces High.
Start Aces High and go to the "Offline" option from the clipboard.
1) Press "Setup" from the clipboard.
2) Select "Controls" from the clipboard.
3) Press "Joystick".
4) Press "Select Joystick"
5) Select "Rudder" from the "AH Control" list.
6) Make sure the rudders are selected in the center section
7) Make sure the "Z-Axis" is selected in the right input section
8) Press the "Set Input" button.
If you loaded any control software for the pedals, make sure it is not
loaded when you start Aces High, as Aces High will properly detect the
pedals and the software will interfere with proper operations.
The above works for every axis, stick, and/or mode joysticks operate in.