I WOULD LIKE STEP BY STEP DIRECTIONS

Hello,

I AM HOPING THAT SOMEONE COULD GIVE ME STEP BY STEP DIRECTIONS ON HOW TO SET THE SCREEN DEPTH AND RESOLUTION RIGHT ON MY DELL MONITOR. I HAVE AN ACER ASPIRE ONE, AND I ENABLE VGA MODE ON MY OLD DELL MONITOR BECAUSE I HAVE A CRACKED SCREEN. ON THE MONITOR ITSELF IS AN OPTIONS MENU. *SIZE/CENTER *GEOMETRY *COLOR *CONVERGENCE * LANGUAGE * OPTION * HELP. NOW MY SCREEN IS OFF CENTERED AND OBSCURED. SO I WAS TRYING TO FIX IT WITH THE OPTIONS IN THE SCREEN SIZE AND CENTER MENUS OPTIONS. I CANNOT FOR THE LIFE OF ME GET THE SCREEN TO FORMAT TO SIZE OF MY MONITOR. IF ANYONE KNOWS HOW TO HELP ME IT WOULD BE SO GREATLY APPRECIATED.