Let me first say that I am a novice. My operating system is Windows XP home edition. For the past week I have had a problem when starting up. I switch on and everything looks o.k. I have three accounts set up for the family, but I am the main user. When I go into my account and attempt to type anything nothing happens. I have to go into another account and then switch back. It then works o.k. This happens regardless of which account I start in. I have scannned it for a virus but it shows clear.Can anyone please help.