I just installed the game, Mirror's Edge but unfortunately my LCD monitor isn't supporting its default resolution.
My LCD monitor's resolution is 1024x768 60Hz.
Just found some discussions about this issue, like this one
From these guys, you're right about it being a resolution issue. You can manually overwrite it by editing the Documents/EA Games/Mirrors Edge/TdGame/config/TdEngine.ini file and change the ResX and ResY values.
Try to put your monitor values there, apparently that worked for him.