There are many adjusts and it is insanely hard to get it straight. A mix of pincushion, trapezoid, pin balance, and parallelogram are my choices. It seem shard to get all 4 sides straight. I can get 3 sides straight,but the 3rd side is very very very tilted. It is very evident when I load up games. Also, when I change resolutions, the monitor becomes the default and I have to find the perfect combo for that resolution, which is why I suspected software could do something.