It is very simple: you go to tools, and then internet options. From there, you can type in the home page that you want (www.msn.com) and that is it. Unfortunatley, I think that you have a virus. Usually when your computer defaults to screens like this, it is because the virus is multiplying (that is what it is meant to do). If you try to change your home page, and it won't let you, you most certainly have a virus. If it does let you, I would still run a virus scan to make sure that everything is ok. If you don't have anything, Norton or McAfee are the best two out there. If you have comcast as your internet provider, they provide McAfee for free. Just call them up and they will walk you through the steps of setting it up.