On p3d v5, when I press the alt key like I am trying to access the p3d menus, the view starts moving to either left, right or all the way back to tail view.  If I try to press the button on the yoke to return to captain view, it starts moving left or right etc.. again 

I have letters assign for left, right, up, down and my hat switch appropriately.

I don't know, I added chaseplane as trusted app to webroot (they claim you don't need to do that, but I did just in case), but still happens.  This time, I hit v to move right and it kept repeating until it stopped just outside the aircraft.  

I'm still having this problem, the only solution seems to exit cp at which point the movement stops and  restart cp.

I'm still having this problem.    This is on a new install.  The one work around is to wait almost a minute for it stop moving to some outside view of the plane.  This morning I just pressed the alt key and it started moving on it's own all the way to left.  These are the only keys and buttons I have mapped on a  new install:

https://www.amazon.com/photos/shared/SZiEPSMsQaePQtzGBCnylQ.R0SqN4FHxO9vjZP5yL4q7V

 

When I try to reload it, the view gets reset, but none of the buttons or keys work. The work around to that is to select an option and turn it off and on and then reload it like enable advanced features.