Hi Jester2K II. You will never get perfect geometry on a crt monitor. The electron beam is scanning part of a sphere, and electronic and magnetic trickery is used to coerce it to land on a nearly flat surface in what is acceptably close to a rectangular pattern. When you find a setting that is as close to perfect as you can acheive, leave it for a few days and you'll probably get used to it. If you really want perfect geometry, you'll have to get a LCD display, but then you'll have a different set of defects to worry about.