HeliLog wrote on Feb 2^nd, 2010 at 4:25pm:

aircanada,had same problem with my captain Sim,and all default aircraft,One day every thing great. just installed cs 767,then for some reason decided to uninstall either the cs757,or cs130,but after that the speed problem ,same as yours happens,,,ended up reinstalling FSX,That worked ,but always believed it was a  FSUIP4 problem http://www.captainsim.org/yabb2/YaBB.pl?num=1260918860

Oh wow! Reinstall? I don't want to do that! :( that would mean installing ALL again? Is there any other solutions? Maybe from the Captain Sim team?

More thoughts: what if I buy the plane(C130) and install it, would that fix the problem? .... plus, I just can't imagine this company having every customer complained after installing this DEMO and then having to reinstall the whole game just because of this glitch(?)!
Or just happened to you and me? Hmmm I tried to post a different message in the board but it got deleted.... I sent a ticket too, and I am still waiting. Your thoughts? :-/