Quake III Arena is an old but awesome game.
Not too long ago I picked up a refurbished Asus IPS monitor for a good price. It was a vast improvement over the seven-year Dell monitor I had. The colors were brighter and more accurate. The text was especially sharper. All in all, I was quite happy.
The problem I ran into was when I played Quake III Arena. Everything was much darker and the colors were too bright compared to the Dell Monitor. As an example: