Don't know why this happens, but it does and its seriously starting to annoy me. What happens is sometimes while surfing the net and switching between windows, my viewsonic monitor (on a GF2 w/32mb) briefly goes dark and flickers, as if i'm starting up a game. I don't know what caused this, other than i just installed a new modem. I might've bumped the vid card while installing the modem, but i don't think it would cause this type of problem. Can anyone help?