This site is being deprecated.
Please see the official X‑Plane Support page for help.
When controls start to seem broken, the first thing to try is resetting the preferences. Information on where to find the files is in this FAQ. Move the entire preferences folder to the desktop, restart X-Plane and see if it fixes it.
If not, and you are using any plugins, try moving the plugin folder to the desktop & restart X-Plane.
This site is no longer being actively maintained.