My iBook G4 (12" 1.2 Ghz) will not display anything but a blank white screen. The computer seems to work regardless; for example, I can hear the hard drive churn on startup and I can log in too. But the screen just shows white. This is the second time this has happened to me; it happened in January (the day i went to MWSF, no less), and Apple replaced the logic board and display. Am I the only one with this as a recurring problem? And is it really the logic board and display, or is it perhaps another issue (I'm thinking display cable) that was corrected when Apple replaced the other components? This was a replacement to my old iBook G3, which was afflicted by the logic board problem. Talk about rotten luck!