Hi Reef
I know I mentioned this over at UKTS but I didnt explain in depth enough, I have this same issue where I can not select my native resolution in borderless mode. As a work around I perform the steps below, my resolution is 3440 x 1440 but as you can see I can not select that resolution in borderless mode but I still play borderless at that resolution
1. Go to settings and change to Fullscreen
2. Change resolution to monitors native resolution
3. Save and restart Railworks
4. Go to settings and change to Borderless (VERY IMPORTANT: do not touch resolution drop down)
5. Save and restart Railworks and now it should run at borderless full screen for you but dont ever touch the resolution drop down or you will have to repeat the process
Things to note -
- When you save and restart Railworks form the settings menu it will restart in 32bit mode, you can then close and restart in 64bit mode if needed or you can even close and restart manually if wanted. Either way will achieve the same result
- The menus will have vertical letterbox lines on each side of the monitor but the sim will load game into fullscreen
- Getting a 2k monitor is not a bad idea, you will be able to actually read the writing that on the screen plus in game you are rendering far less pixels meaning more FPS
I hope this helps to get you going in borderless mode
Regards
Jareb