Moniter/computor Problem. Dell Dimension 5150?

I have a Dell Dimension 5150 that i had bought about 3-5 years ago. Suddenly, overnight, my monitor (i think it is a and Dell E178FP 17″) has had a pink tint on everything. I searched online and found that viewing my laptop (im using right now) is causing MY EYES to do this. IS this true. Then after this, my monitor, whenever i didnt press the off button to turn it off (after i turned off the computor) , would change colours such as blue, red, pink, yellow, etc. THEN after a few more days, a power surge went off and my comp isnt working. I no the beep codes and light number flashes and junk. It says either graphic card failure but im wondering if it has something t do with my monitor. Please help answer this question by relating if u can. Thanks a bunch. And please mention if it is nessesary for a new moniter.