This was one of the main things that kept me from playing F1 2015. I could run borderless windowed mode, but it was not possible to get to my funky resolution (4702x1620) and a 3:1 aspect ratio. The process with this game was MUCH easier! The hardware_config XML allows you to define a custom aspect ratio (you can calculate yours here: https://www.digitalrebellion.com/webapps/aspectcalc) and use Borderless Gaming and you are golden! The best feature of all, however, is the ability to specify the window size, as well as the X and Y offset! The problem with F12015 was that it would start at the top left corner of the center monitor and if you werent quick enough it would remove the borders (and destroy your custom resolution) before you could move the screen all the way to the left screen in a triple screen setup. Thank you so much for fixing this Codemasters! I played for 4 hours last night in the lobbies jumping from sprint race to sprint race and had a blast! Looking forward to dialing in my controls tonight!