Maybe someone here can help.

[hellcat38 0]

I have a small stutter while playing FSX in DX9. It does not stutter in DX10 preview. I thought it was the new Nvidea drivers causing it,as it never did it with the driver I used for some time. I did some research and found many threads about people having the same problem after installing the new drivers. I have tried diffrent settings with FSX and hardware.Crazy part is,in the past I ran FSX in full graphics and never had a glitch. When I seen this start was about the time I installed BF3.Thats when I had to install the new drivers. Since I have uninstalled BF3 and went back to the best driver (270.61). I was told that MS updated the C++ software and it was playing havoc with FSX..So I installed the last C++ update and helped some. Be for this happened I ran FSX with a constant 30 to 50 FPS. Now its 5 to 90 and all over the place. Any ideals?

[boeing247 0]

Just the first thing that comes to mind, have you made any adjustments to your settings, particularly in the fsx.cfg file directly? Also, check to see if any you made a while ago have been removed, that's happened to me.

[HUSSAR 272]

Hi,Did you delete FSX.cfg and rebuild one after you installed the latest driver?

[hellcat38 0]

Thanks for the replies. I have never messed around with the config. file. So I took a look at it. I seen where there was a place too change the setting for single,dual and quad core cpus. After some research I found some settings. I changed that setting to 90 and turned up the AA in the Nvidea CP and so far so good.Thanks