I have an advent 7027 laptop - it seems to have developed a problem overnight. The keyboard doesn't seem to work properly. When you press some keys i.e. "P" it will not appear on screen, on the other hand, some letter work OK when selected. Other keys when pressed select 3 or 4 letters i.e when you press "X" Z,X and C are displayed! Can anyone tell me what is going on here! I haven't spilled anything on the keyboard and it was working fine last night, I'm totally baffled.