I'd try to kind of disable all add-ons (scenery and -enhancements) and make FS as lean as possible. Maybe only a fresh install of both the OS and FS would do the trick since many things are tightly interwoven into Windows and it's at times difficult or impossible to get rid of them.I don't think it's an issue with missing textures or so, to me it looks like a ressource overflow problem of FS.

Ok thanks for the help guy's, A OS reinstall is completely out of the question way too much time invested in FS and other programs on this PC.Thanks Dan for your detailed post, I actually build tweak and sell custom gaming rigs for customers in the middle east as a side business so my machine is optimized as much as I can considering fs is sitting on a Core2Duo 8600 wolfdale. I don't plan to build a new machine from scratch until the 777 is out and the next gen of processors are on the market. Just a few points on the status of the setup. If I cant get this fixed I don't mind going back to the 744 full time.CPU has been overclocked to 4.0ghz since I built it and the OS is XP 32 bit so only 2gig of ram, no matter what I have thrown at FS it is always silky smooth, as in zero stutters with everything maxed.GPU is a ATI 4870 (not overclocked), I tried a few different drivers after the issue came up but it made no difference.A week before the issue I landed at UUEE in Russia, Russia in my version of FS9 has no add-ons except global mesh and some scenery for Moscow. Since the issue I have placed the aircraft in Bahrain (my test airport for new aircraft due to area being very sparse) I have checked the processes and memory usage and everything is normal, the only thing that has changed is since I purchased REX I tend to randomly load a bunch of textures etc into the sim before I load FS.Anyway I will try all your tips again tonight so fingers crossed !

Hey, if you say installing REX is the only change, then perhaps you could try restoring all original textures. Quite a long shot but one step back could be one step forward.

Hey, if you say installing REX is the only change, then perhaps you could try restoring all original textures. Quite a long shot but one step back could be one step forward.

Thats on my list along with the other suggestions.Thanks

Thats not a longshot at all, I imagine this bug happens when you run out of memory of some sort, possibly gfx memory. Those huge hi-res REX textures are sure to eat alot of the memory needed for the plane itself

Thats not a longshot at all, I imagine this bug happens when you run out of memory of some sort, possibly gfx memory. Those huge hi-res REX textures are sure to eat alot of the memory needed for the plane itself

But as stated before I have been running this sim every few day's. This is something that happens when I load up the sim from the start, clear weather sat in the deserrt in Bahrain, frame rates etc are fine, GPU temps memory usage and CPU usage are fine. I have flown the MD11 into Aerosoft Frankfurt in Heavy winter weather on Vatsim after 9 hours from the US and the machine does not even break a sweat. I wish it was as simple as my hardware is not up to it, I will give everyones suggestions a try and see what happens.Cheers

FIXED! It looks like I missed the most basic course of action any simmer should take when FS starts acting crazy, Delete your FS9.cfg and let the sim rebuild it. I have no idea why it fixed it but it worked for me.Thanks again for all your help.Cheers

FIXED! It looks like I missed the most basic course of action any simmer should take when FS starts acting crazy, Delete your FS9.cfg and let the sim rebuild it. I have no idea why it fixed it but it worked for me.Thanks again for all your help.Cheers

Grats! Glad you got it working, Rob. Very strange how the FS.cfg's get tainted. I wonder if it's really that or reference to it somehow gets hosed. I'm waiting for when mine gets corrupt so I can compare the two (new and old) line by line to try and answer that.

HiLucky you I've been struggling to fix this exact same problem without any luck.Originally I had cockpit sounds disappearing, reinstalled OS, (fixed the sound problem,think it must have been drivers) and now I get this problem. I've tried every solution to no avail. Need help badly!ThanksJose De Camposi7-920 3.80GHz ~ 6Gb DDR3 ~ GTX 285 ~ Win7 64 ~ FsX

Grats! Glad you got it working, Rob. Very strange how the FS.cfg's get tainted. I wonder if it's really that or reference to it somehow gets hosed. I'm waiting for when mine gets corrupt so I can compare the two (new and old) line by line to try and answer that.

I take a copy of my FS9.CFG any time I make a change to FS, be it to the sim itself or an add-on. Maybe it's stone cold paranoia on my part but at least you can iteratively step back until a problem ceases to occur.