Smack!

It's a brand new £3,500 iMac. Downgrading to Mavericks is not an option as the mac is set up for high end photography and music studio production. I'm not using any external flight controllers.. just the in plane control panels which really should just work fine. Even with the demo although time limited the only thing that gets disabled is the mouse control which after take off is not even needed if the autopilot functions normally. For some reason they are not. I have downloaded and tested quality 3rd party planes too but it's the same story.

I spoke too soon.. a short while into various flights the controls went haywire and all planes disobey every instruction given. I can not use X-Plane at all.. I have a 27" iMac 5K Retina with Yosemite and X-Plane 10 just does not function correctly on my system at all. Neither with the full install or the latest demo version will any of the planes behave normally.. they all ignore the auto-pilot completely, GPS and FMS do not work at all. Impossible to do even the most basic flights. Oh well I guess X-Plane won't be for me any more.

Lol, no worries OK so just installed a the latest demo and a few tested planes are now behaving normally, rolling straight down centre of runway with no pulling to the left issues, able to follow heading bug, and even GPS and FMS are both working now very nicely. Will try adding more planes and more scenery next. I have heard of others having issues trying to run X-Plane 10 on the latest 27" iMac 5k Retina models and that could have been my issue as my copy was pretty old I think.

Hi Mr Swiss.. It's not a case of "needing to learn how to fly". I am not new to flight sims.. I have played X-Plane and FSX on and off for maybe 10 years with no issues in any plane from simple to complex. But this however is my second attempt on a Mac system. I tried X-Plane on a Mac a couple of years ago and the entire autopilot and GPS systems all refused to work then too. I ended up just giving up and deleting the entire program and no one in the forums or even X-Plane support were able to help with these recurring issues. I decided to try again with a new 27" 5K Retina iMac but the same old problem still exists. I can not even get the simplest of planes to follow even the heading bug or maintain a fixed altitude. Every single plane also veers and swerves to the left on any runway and with zero wind forcing me to over compensate with extreme right steering simply to stay on the runway, and as I stated even the A.I is having trouble with some planes. So, I appreciate the tips on taking flying lessons (I did that years ago) and on how to setting up X-Plane, I followed this method (http://www.x-plane.com/downloads/dvd-installation/) I think a case of the installation possibly being corrupted somehow and as such causing things to not work as they should. I will remove the entire program and do a fresh install and see if things improve. edit: Just to see if things are normal on my system I'm installing a clean version of the latest demo that way I can at least rule out the possibility of a corrupted installation.

I have tried all of that, still does not work. Er it get's worse.. even the A.I. can not fly some of these default planes. I set the A.I. to do a simple take off in the SSG B747-8i Intercontinental 2.0 but instead it drove the plane off the runway in an anti-clockwise circle and then flipped the plane right on it's back!

I'm in the same situation, just installed X-Plane 10 on a Mac but can not get any plane to follow a GPS route in any of the default planes. Whether I enter waypoints manually or load an FMS flight plan into the GPS not one of the planes will follow the displayed routes. Is something corrupted somehow?