Ah okay, I think what you are referring to is the expanded resolution support in COD4x client. It properly supports newer monitor WQHD resolutions and perhaps you have a widescreen monitor. Please set your monitor to 1:1 ratio, then choose the exact resolution in the game. As far as ESC key goes, I have experienced it too. I uninstalled and re-installed it then it went away. It's not that happens to everyone or all the time. This is a COD4x client behavior. I recall when this happened I removed COD4x then used the manual install method and it has worked fine. For me it was that I had to specifically press enter when making in-game menu selections. Hope that helps. Sorry for the trouble but this is a one-time pain to solve. Also, not server related since this is a client behavior.