My 2 year old daughter took a black ball point ink pen and drew all over my computer monitor. I tried to get it off with a cloth and water, but that did not work. To my surprise using a baby wipe, and Colgate toothpaste took the ink right off.
Magic Eraser worked in seconds! If it weren't for my 3 year old, I would have not had a chance to test this out. Thanks to those who previously posted this solution.