I was hooked up to a wireless DSL Router for awhile.. It was hooked up through a freind and he ended up cutting me off. I am now having problems logging onto my OS. Everytime the log on screen comes up I type my U/p and I get an error "the system cannot log you on make sure your username and domain are incorrect, then type your password" I dont beleive I was on a Domianm and my u/p are correct.. Can someone please help? How do I log onto my OS?