I use Opera as an Internet browser. lately I been experienced very slow browsing, too slow almost none of the pages can be open. I am using Windows XP SP2, 1.25G ram. I thought it was opera, but then I use IE and even Opera and they all are very very slow I get frustrated

. I can receive mail with my normal speed and even share files or use the messenger without any speed problems its only in the Internet browser. Sometimes I have to reset my computer to have my normal speed in the Internet browser, sometimes, that even doesn't work. AVG 8.0 and doesnt detect anything.
