someone used my computer and ever since i cant access webpages. no matter what address i go to it says action canceled i dont really know how it was caused to reverse it. ive checked the internet connection(it works msn signs in n everything), reset web settings n restores advanced stuff to default and all the other usual suspects but it work work. i asked the person who used it and they said they did look at some porn but didnt do anything out of the ordinary. so i cleared cookies n everything, restarted still didnt work. has any1 experienced this before and know how it can be fixed?