It just started happening a couple days ago. Each time I've gone to espn.com and yahoo, after the first or second link I click on Safari freezes and I have to force quit. I downloaded a couple gigs of music prior to this weekend via rapidshare. I never have had a problem with viruses on my MacBook or this consistent freezing, should I download an antivirus program and run a scan? Any idea why this would all of a sudden start?