My monitor has had a problem lately that I didn't have previously. It's not a new monitor, in fact it's actually pretty old. It's a Dell monitor, but that's all I really know about it as it was a second-hand monitor purchased used from my mother's work. Anyway, what happens is that everything "freezes", then the monitor makes a "popping" noise, goes black for a second, then returns. Most of the time it's just annoying, but if I'm playing a game it completely freezes up the game and it happens a lot when playing Sims, to the point I don't play any longer. I read somewhere that the "refresh rate" could be set to low, but I tried to fix that and if I go any higher it screws up the graphics, plus I didn't have this problem for over a year and it just started out of nowhere. I did recently get a new computer and thought it might be a conflict with the video card or something, but after hooking it back up to my old computer it was still doing the same thing. Any ideas, suggestions? Thanks!