My computerr screen is too little how do i ajust

By going into start> control panel > and display you can adjust the resolution of your screen here is a list of the correct sizes for the screens Please let me know the outcome of this, if it says frequency out of range then youwill need to download the drivers for your graphics card before doing this.
14" 15" 17" 19" 21" 640x480 BEST GOOD TOO BIG HUGE TERRIBLE 800x600 GOOD BEST GOOD TOO BIG HUGE 1024x768 TOO SMALL GOOD BEST GOOD STILL GOOD 1280x1024 TINY TOO SMALL GOOD BEST GOOD 1600x1200 TERRIBLE TINY TOO SMALL GOOD BEST