Sorry, but there is no way to increase the screen resolution above the native resolution of your monitor. Vista does cater for larger resolutions, but these are subject to the monitor and graphics card that you use, although the maximum resolution will be limited to the native resolution of your monitor (as stated above). In order to protect the monitor, Vista and the graphics card drivers
usually hide the modes that the monitor cannot display, so if you wish you can change this setting to show all modes to see what other resolutions are available. WARNING - IF YOU CHOOSE A SETTING HERE THAT YOUR MONITOR DOES NOT SUPPORT, YOU MIGHT DAMAGE IT. If you are after more screen estate, then you will either have to go for a multi-monitor display setup or invest in a monitor with a larger resolution.