This is really crazy, but maybe someone can help: Windows XP Pro, AVG Antivirus free, no firewall other than windows firewall. Behind a router, but other computers behind router have no issues. All of the sudden, I'm experiencing the following symptoms: In all web browsers, links do not load in general. For example, I'll click a link, a bookmark, the refresh button, form submit button, etc. Firefox will display the "busy" icon for about 2 milliseconds, then act like nothing happened (like I hit the stop button or something). IE6 displays the EXACT same issue (so that throws out FX extensions, which I tried disabling anyway to see what was up). If you click the button enough, it will sometimes go through normally, and sometimes it will load about half the page (images/flash won't load, CSS sometimes won't load, etc). All pages work *eventually* but sometimes I have to click the refresh button ~20 times to see the page. This seems to apply to all HTTP communication on the system. Sometimes AIM has trouble connecting, HTTP downloads have issues completing, etc. FTP, Bittorrent, and other protocols seem to be ENTIRELY UNAFFECTED. Does anyone have ANY experience with something like this happening? I'm really confused and getting quite upset Let me know if any more info would be helpful.