Sorry for the long hiatus, for those who care. I had trojans. It was kind of fun because when I googled stuff whatever I clicked on would turn out to be an ad page, even wiki. But then I couldn't use email or facebook, and that was lame. So NB re-whatsitsed everything on my computer for me, and then I didn't have office, or flash, or PDF reader... whatever, it's all good now.