I have a friend who uses Tesco.com. He recently got a new computer and ever since when he tries to sign into his account he gets a message saying invalid username or password. Using the same sign in details, a relative of his can sign in on her computer. Is there anything set or not set on the new PC which might be causing this error? It's a very strange one on me and I'm completely stumped. Barbara Get listed, network or find a business at an online directory of businesses owned and run by disabled people and associated support and advisory organisations: www.barkingbabs.co.uk