I connect two desktops and the subject ibook to an airport base station. The ibook is a 1.2MgH, 30GM hard drive, 256 RAM. The laptop has been in use approximately two years. The laptop has always automatically connected to the airport. Yesterday morning when I started the machine, it indicated it was not connected to a network. When I selected my network, it asked for the password. When I input the password, it told me it was invalid. Nothing I've been able to do with any utility or any other corrective action has changed the message "invalid password." And just so you know, I am entering the correct password for my network. Any advice?