FS going mad !?!?

You may be installing them wrong. Uninstall what made Flight Sim do this and then carefully and slowly install them one by one, checking after you install each one that it works.

This happened to me once before after installing FSSkyWorld

Some add-on you have must have created a default start up setting, so if you change nothing on the screen you might end up in a learjet cruising at FL320 somewhere over a pre-selected area, because this is what the add-on has set

So it has all these settings, so if you go and manually choose an airport, say Heathrow, you will end up on the ground at heathrow, but the autopilot will be on and the airplane might move because of the settings for the cruising default flight

To add to that. Start your default flight and immediately pause it. turn off your a/p, a/t and all the things that should not be on. Make sure the settings are what you want. Unpause and make sure the plane is where it should be. Adjust if necessary then make sure all is as you want it. Save the flight as default. That should cure the problem.

Great tip CrashGordon

This saves all your settings that you currently have when you are doing it, so you can take advantage of it. If you like to start your flights with the cockpit cold and dark, then before you save it using the instructions Crash gave above, make sure the engines are off, all lights are off and then save it.

So now when you start a flight, in any aircraft, at any airport, you will with a cold and dark cockpit.

However, if you dont like the cockpit cold and dark when you start, then just leave the engines running and then save it with the autopilot off and that

Tim