Graphics settings question

Through upgrades in my hardware, graphics card, ect, I have endeavored to maximize the graphic display in my GP4 simulator setup as newer high performance monitors have become affordable. I have been able to set all the custom graphics settings to "all" or high with 50-60 FPS. However, the resolution settings in the game want to max out at 1024X728. When I choose a higher setting, ie 1600X1200, the game blinks and defaults back to 640X480(?). Not my biggest problem in life but any thoughts on that?

In f1graphics.cfg set the first value on line 1 to "1" and then set your monitors resolution on lines 2 and 3, like this:

1			; f1graphics.cfg controls all settings (default 0)
1600			; [RELEASE] Game 3D Horizontal Resolution
900			; [RELEASE] Game 3D Vertical Resolution

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Intel NUC 8i3, 8GB RAM, MS Sidewinder Wheel

Thanks for the tip, Tom. I'll try that.