fsx/fsx-se? FSX Steam Edition Autopilot issues

[RoccoD2 0]

This an issue that has been explored before but a long time ago and with no solution, ie... http://www.avsim.com/topic/63846-acceleration-autopilot-problem/

 

So, I'm using FSX SE and have the same issue in every plane. When going above about 22,000 feet using autopilot, and using any acceleration above 4X, the plane begins to violently go up and down a few thousand feet. I thought it could be the acceleration pack that steam edition comes with but I have the disk version with acceleration and have never had this problem. I'm hoping there's a simple solution solution to the nagging issue because it makes full flights impossible because of time restrictions. Thanks in advance!

[nealmac 260]

EDIT: Sorry, misread your question.

[HighBypass 2,339]

WELCOME!

 

I know it's not exactly realistic, but you can of course save your flights...

 

Time compression isn't realistic either (don't think there's a TARDIS for FSX yet...), so no one will think bad of you for doing either