I am having the same problem. I first noticed the issue about 10 days ago with Facebook. Now, the issue has increased to include most of my saved favorites. Some pages do load with no issue...Yahoo, yahoo mail, MSNbc. And, when I Google a topic and click on the search result link, those pages won't load. I'm running XP, and have McAfee running routine scans, and am currently running a malwarebytes scan to see if that helps. I installed firefox, and am having the same problem. I'm fairly certain this is a virus of some type, because my laptop (on the same wireless network) is behaving the same way. Any ideas?