I LIKE XP BETTER.
Typical response from someone who's 10yrs in the past and has no idea how to use modern software.
Did you install the latest drives for your video card from ATI/Nvidia/Intel?
1600x1200 is an odd resolution, most monitors are 1680x1050 or 1920x1080.
Are you sure 1680x1050 isn't your monitors native resolution? Have you tried it?