So this has been a problem for awhile, although I've been studying abroad in Europe and haven't had the time to deal with it until now. Out of the blue about two months ago, Google/Yahoo/Youtube all stopped working on Snow Leopard for me. It has nothing to do with the browser - none of these sites work on any browser and even my Gmail won't load in the Mac Mail app because it cannot connect to Google. I've been having to use my Lion Preview partition in order to access Google or YouTube and I'm getting sick and tired of having to switch between operating systems to simply look up a video or something. Has anyone experienced similar problems to this? I've tried a virus scan but it found nothing. Odd thing is is that occasionally one of these sites will work, for instance the other day I was able to use YouTube for a few hours but then my ability to use it suddenly vanished and it reverted back to the usual "Firefox cannot establish a connection to the server". Should I just delete the Lion Preview partition and upgrade my entire system to Lion to solve the problem? Or is there a better way? I've heard mixed reviews about Lion so I'm hesitant to upgrade my entire system to it.