I've been having this weird problem for 2 days now. In short, browsers often just refuse to load pages. Everything will work fine for a while, then nothing will load except google or hotmail (but it won't search/let me log in), everything other site will just not work, whether it'll say waiting for response or show a page cannot be displayed error. It happens on both IE and firefox.
It's not that my internet is down either, my computer downstairs can still browse the web and I can still use AIM or run torrents on this one, it's just websites that don't work. This has even continued after a format! Doesn't seem to be my router's port, I tried my other computer on that port and it worked fine, and I don't see how it could work with aim and just not web pages anyway, and only some of the time. Next step is try a different network card I guess, I don't understand it at all, so if anybody could help me out I'd really appreciate it.
Luckily, it's working right now. Don't break on me.