Hello, I use FSX on a windows 8 Toshiba laptop and I have to say I didn't even expect the game to open but it runs actually really well and I can cram up tthe graphics settings and it still runs well. The only problem I have is with changing the simulation speed on long flights. Because I don't want to sit in front of the computer for ten hours, I normally change the simulation speed to 16x after reaching cruising altidude and the autopilot has been engaged. The problem does not occur when I change it to 16x but when I change it back to normal speed. About 60 seconds after I changed it back to normal speed, no matter what I do or what situation I'm in in the game, the game freezes and I get that dreaded 'FSX is not responding' message. I've tried everyhing. I've tried saving before and after I change it to normal speed then exiting the game and repoening it, I've changed the graphic settings, I've even played around with the game's compatibility settings but it still crashes approx 1 minute after I change it back. Has this ever happened to anyone out there? Is there a solution or suggestion you know of that may fix the problem? Thank you so much I appreciate any help you may have!