after a few weeks now on my new PC Mission builder works fine and cfs2 works fine without scaling the monitor resulution down to 1920 x 1080, CFS2 and misionbuilder are scaled by the cfg. file to 1920 x 1080. I setup a big test mission (about 100 aircraft in the air) bombers, torpedo bombers fighters, fighters-starting on ground, ships, a lot of Flak, a few vehicles and static ships, 3 cloud layers, just to test and it works! if you have a big monitor (my is 3440 - 1440 ) never touch the quality settings, but hand edit the cfg file for that purpose and if everything works make a backup copy of your working cfg. I just thing about how old CFS2 is now, so the new big monitors are not suported. I still wish that ms make a new combat flight simulator 4 ( not a game ), based on FS2020 technologies with a mission builder like CFS2. for Makus: I unfortunately have a Nvidea 3060 graphics card so I can't gif a tip how to solve your issue wolfi