Odd Problem FPS in FS2

  • Of late I have noticed a strange problem in my DVD version of flight sim FS2. Start up the sim choose location, select aircraft and fly. The FPS starts at around 30. Stop flying select a different aircraft and fly. Now the FPS is around 140. Go back to the first aircraft and fly FPS is again 140.

    I have the very latest Nvidia driver for my GPU, using an older driver makes no changes.

    Anyone else out there with problems like this please?

    Windows 7 Home Premium 64-bit SP1, Intel Pentium G2130 @ 3.20GHz, 16.0 GB RAM DDR3, ASUS H61M-K, Graphics PHL 273V5 1920x1080 @ 60Hz, NVIDIA GeForce GTX960, Thrustmaster Joystick and Home Made Rudder Pedals.