Quagmire

I use CH Products Flightstick Pro USB, and have for a long time. I have the latest version of FSUIPC4 installed. I was able to set the sensitivities, etc and everything worked no problem. Then all of a sudden when deflecting the ailerons left or right, they would snap back to neutral on their own. I don't remember what I did, but somehow I corrected it, or it fixed itself. Now its happened again and I don't know what to do. I've tried recalibrating the joystick, plugging it into a different USB port, rebooting the computer, and yelling at it. I also called CH Products tech support and we were able to determine that there is nothing wrong with the joystick itself. Any help is greatly appreciated.