HI,Is this how you apply the VSYNC tweak that Phil gave for stopping large frame jumps in FSX? I have this problem and I am hoping applying this tweak will stop that. ;-) I want to turn off VSYNC in full screen.Gary[DISPLAY]ForceFullScreenVSync, default is TRUEForceVSync, default is FALSE------------------------------------------------------------------------(Change to)?[DISPLAY]ForceFullScreenVSync=falseForceVSync=false

After installing SP1, my framerate is very instable. Read about the VSync, but can't find it in my fsx.cfg??