I can not slide the passenger and fuel to the airplane. This problem occur after I reinstalled FSP. I have asked help from the website of FSP, but nobody know how to deal with this problem. It seems like something conflict with FSP. I have tried to reinstal FSX, but doesnt work. All the buttons in the load page dont work. So, it there anybody know how do deal with this problem? Thank you very much.
My computer is WIN8.1, All addon sorfwares I have : PMDG, REX, GSX, Adobe AI Traffic and FSP.