Hi all, I have an iBook G4 (14", 1.33GHz) that is having some problems starting up. It used to have Tiger on it and worked fine, but ever since I've upgraded it to Leopard it has been giving me sporadic problems with booting up. The problems are more common now than they used to be. Recently, it has just been booting to a blank (white) screen. You can hear the hard drive spinning and all, but the computer is non responsive. When it does this, if you boot to Start Up Manager (holding down option) the Macintosh HD icon never appears, and after a while the system will freeze. In the past, it has booted to a flashing question mark as well (can't find OS/ HDD). What puzzles me is that if I work with it long enough, it will eventually start up. Like today, it started to boot to the white screen. I restarted it into target disk mode and it worked, and another Mac was able to detect the HDD and browse the files. After I restarted the iBook, it booted up just fine. Has anyone else had this kind of a problem with an iBook? I'm aware of the logic board issues with the G3's but this seems like some sort of OS or hard drive issue. I've tried repairing permissions as well, that didn't help. The only thing I haven't tried yet is reinstalling Leopard. (The hard drive is the original 60GB drive, and the SMART status is verified as well). Thanks in advance for any help/ advice.