I need urgent help! I have been trying to get 2560x1080 resolution on my new UltraWide LG 25UM58 monitor but nothing works. I have a Radeon R7 Graphics Card and I have connected the monitor and PC through a DVI To HDMI cable since the monitor only accepts HDMI. Am I doing something wrong? I have tried upgrading drivers, setting custom resolutions and nothing works!!! Please I need urgent help! Is my cable not good enough? Is my graphics card to old? Im on windows 10, please help.