GSX not functioning correctly P3D

[Planebuff]

I recently got P3D (week ago) and i installed GSX into it. When I use GSX, there are a TON of bugs like 2 belt loaders go to the same door and go inside each other and some times it says open the doors when they are already open and I am deboarding. Now, is having both FSX:SE AND P3D installed at the same time causing problems to occur? If so, will uninstalling FSX:SE fix the problems?

[virtuali]

When I use GSX, there are a TON of bugs like 2 belt loaders go to the same door and go inside each other and some times it says open the doors when they are already open and I am deboarding.

Two belt loaders on the same door AND not having the program recognize the door's status, seems you are trying to use an unsupported plane without configuring it first, or you made some kind of mistake editing the configuration of an already supported plane, like trying to exchange the doors and doing it in the wrong way, as explained here:

http://www.fsdreamteam.com/forum/index.php/topic,13169.msg98455.html#msg98455