I have never had this kind of problem before. I have a Gateway XP, 521 RAM, 40 G HD, Pentium 4, 2GHz,. It all started when my computer just wouldn't restart or shut down. Being an impatient noob, I did a cold boot certainly more than 1 time. When I opened Firefox about 1-1/2 weeks ago, my Firefox had no bookmark, no extensions, and No Passwords!!!! The fre version of Avira has found quite a few trojans, unidentifiable objects. I downloaded Registry Booster, paid for it, and then all they keep doing is trying to get my money. I was even redirected to a page which looked kind of similar to Uniblue. This thing is loaded with creepy crawlees and I'm wondering if I should just strip the drive and install Linux, hopefully they have a version that would be similar to XP, but I am sick of this one. But first, I have to get rid of all these pests.