I am looking to buy several new monitors. I was all set to get some 22" 1920x1080 ACERs, but i noticed the refresh rate was listed as 60 Hz. I currently run everything I have at 75 or 80 Hz. I noticed most of the consumer-oriented monitors they had seemed to be 60 Hz. Is this the new standard, and isn't there a problem with flicker and eyestrain at that low a refresh rate?