Hi. I have a new toshiba satellite l505-13n and i install the windows 7 ultimate 64bit greek into clear 500gb sata hard disk i install ALL THE DRIVERS but it has a MAJOR PROBLEM that is keyboard delay when i try to write a text into everywhere. With defaul windows 7 home premium 64bit that laptop has on it everything work fine even the keyboard but with that win7 ultimate 64bit the only think DOESN'T work fine is the keyboard. I was install the exact same win7 edition into others computers and everything work fine. So do you have any idea which may be the problem? A LOT OF THANKS.