I have just begun using FSX and am having the same problem I had in FS2004, namely over sensitive controls, especially rudders.  I use a CH yoke and rudder, and nothing helped until I installed the "linear control utility" posted on this site (see the prior post I have copied below).  It was like magic (thank you very much)!Is there a way to use the utility with FSX?  The posting states it is for use only with Windows XP (which I am using for FSX), but makes no mention of FSX.
Thanks
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    LAST EDITED ON 09-03-03 AT 19:06z () by Ben_Chiu (admin)
    This FlightAdventures install will configure your installation of
    Microsoft Flight Simulator 2004's controller operation to behave in a
    linear fashion as opposed to the default time-delay operation. In our
    experience, linear controller operation is more realistic.
    http://files.flightadventures.com/dl.pl?FS2004XPlinearcontrollersetup.exe