Hello, Long time reader, 2nd time poster . Yesterday I recived my brand new Powerbook G4 15" with Backlite keyboard. Everything looked fine, until I started typing. Everytime I press the K or L key, it goes deeper then the other keys. Like there's nothing under it to stop it. Further more the surrounding keys go down with it (because of the plastic surface its mounted on it). This makes a very irritating sound, doesn't type very good and I'm afraid it's bad for the keyboard in the long run. I will call apple service today, but maybe anyone knows a sollution to this problem?