All suddenly the keyboard on my PowerBook went mad. Whenever i hit the Caps Lock key, the computer writes 4rfv or 4RFV. When I hit the < key I get 2wsx. It's also a problem with the following keys: å, ´, page up, page right and '. I've tried fsck -y, but to no prevail. I'm on 10.2.5. Using an external keyboard via USB seems to work. Only the internal keyboard is affected. Any ideas?