When starting up X-Plane 10 the airplane is almost positioned perpendicular on the runway.In my opinion it should be positioned along the axis of the runway.What is going wrong?

Not seen that one before. I think you will need to give more info to get an answer on that. What are your weather settings? That might be a first place to look at.

What airport was this at?...or is this occurring at any airport you select?

When starting up X-Plane 10 the airplane is almost positioned perpendicular on the runway.In my opinion it should be positioned along the axis of the runway.What is going wrong?

I have seen that on my system a few times but not recently. What I might suggest (satisfaction is not guaranteed), is that when you exit the the sim, do notexit by using the "X" in the upper right corner. Use the menu function of "file" and then "exit" from that. That method should save your preferences properly.So, take off, land and then exit the sim using those functions.I tried to duplicate your malfunction by going to various airports and selecting Default ramps and such, but no joy here, all works well.Chuck

Okay, let's give some more detail.Every time I start up on the runway from spot view the plane is lined up with the runway.But looking from "forward with panel" view, I look about 45 degrees to the right..When lining up with the runway from the cockpit view, then in spot view the plan is about 45 degrees to the left.So spotview and cockpit view does not match.This happen at every airport.Shutting down with "File/Quit" does not improve.Also weather settings are as low as possible, viz. no winds, turbulences etc.So what can I do more to improve?

Sounds like you may have a setting in the lateral offset setting in the settings screen. Make sure the lateral offset boxes report 0.00

I had a look around but could not find an answer. What I did find though was cool. If you click on Special in the menu then go down to "Show sky colours". Never knew that existed. Very nice.Sorry for the off topic but thought that was worth pointing out, probably only me didn't know that was there :(

Hi Donald,Lateral boxes are on 0.00!!No further improvement????

Okay everybody, problem has been solved.New installation and everything is now looking okay!