Well I tried 1920x1080 resolution for 2 days playing nothing wrong with it. Then I tried to lower the resolution to 1680x1050 in the options and accepted then started the custom campaign of wbc3 original where I know I have to change resolution again and I selected 1680x1050 and accepted and then game crashed. At first I thought I didn't set resolution right but on closer inspection when in campaign I again check what resolution I tried to run and games was trying to set resolution to 1600x1200 even when I selected the 1680x1050 resolution option and there is no 1600x1200 option to be even selected from. The bypass was to select the 1680x1050 resolution in options and 1920x1080 resolution option when entering campaign map option and it will be selected 1680x1050 options and selecting 1680x1050 will always get select the 1600x1200 option.