I have a 27" Imac bought just a couple of months ago. Runs OSX Lion 10.7.3, 3.4 GHz, i7, 4gb RAM, 1TB HD. I have a smugmug account and it bothers me when screen goes white sometimes when searching for photos. Same thing happens on Youtube. Screen goes white but I can hear audio from videos. Actually on any page, even Google, screen goes white. Every times this happens I go to Safari with no problems. So I need to have Safari open just in case the white screen issue occurs with Google Chrome. Thanks in advance!