Okay so recently, I've been getting Google Analytics pop ups. They would pop up and then either say "Google-Not found" or change into an ad. I've scanned my whole computer with AVG four times. But it keeps happening. The weird thing is that it only happens on Tumblr. Whenever I click on a link in tumblr. Facebook, yahoo, etc seems fine (SO FAR) Please help me stop this before it does start to spread to facebook and stuff 