For the majority of Macintosh users, those without copy-protected software, this article will be a minor curiosity. Lucky you. For those left, you will want to read this to save yourself the hours of aggravation that I went through installing The Latest Upgrade

There may be problems with the PowerBook serial ports, related to the ROM power saving code. I've had direct comments from software houses about this, and although I don't want to name them publicly without their consent, I do think there are some serious problems