I have just replaced the hard drive on my Powerbook G3 Lombard, it is now running OS 9.1 and I am trying to install OS 10.3. I have successfully installed OS 10.3, scanned for updates, and ran it perfectly. My problem is that every time I shut it down completely, when I bring up the OS 10.3, I always get a prohibitory sign (circle with a slash through) I have looked to update firmware, but it states that this model does not need updated firmware. I have also tried installing OS 10.3 about 100 times and always end up with the same result Im about to give up, so I could really use some help. Thanks.