i have an aoc 22' 1080 monitor and i was able to change the refresh rate from 60hz to 75hz.my question is will this affect the life of my monitor.and to anyone else that has done this, do you notice any real difference in performance for example do you notice the extra 15 frames.i play bf3 on custom settings (most things on low except mesh which is on ultra ) so i generally achieve an average of 75 frames with my gtx 560.i do notice the extra frames i just wanted to hear you guys opinion