good morning Ephedrin Thank you for your answer. I use P3d v.4 On the main screen I have the 737pmdg 3D cockpit, on the second screen above the head I use a touchscreen for the ovveride. The pc runs at about 70frame. Now I bought the commander side cockpit, this has 3 monitors for the various navigation monitors, engines, ... In all I opened the 3D cockpit, the ovveride, and the 4 navigation monitors do not lose too many frames? Thanks and have a good day also in Downscc cris