Originally Posted By: Tim
I was under the impression that it was fluorescent lighting that caused the really bad flicker in 60hz CRTs. It was explained to me as the 120hz flicker from the fluorescent lights interfered with the 60hz CRT and cause the flicker to be much more noticeable. This gets really bad if the lighting is old and drops to the main circuit's frequency (60hz). It wasn't as bad in areas that have incandescent lighting instead.

Thats what I remember as well. I tended to notice monitors at work at 60Hz giving me problems much more then a 60Hz CRT at home. That includes a 27 inch CRT monitor that I used frequently at home.