I have just bought a second-hand G5 dual 2GHz. It's the late 2005 model (the one that has PCI Express slots). It works OK. But I want to put my own password on it. The usual way to do that is to start up from a Tiger install DVD and choose change password from the menu-bar. BUT it will not restart from a "Mac OS X v10.4 Tiger" install DVD. That is the generic one that should work with all Macs. I bought it from Apple about 2 years ago. What happens is that I get a kernel panic (the black screen and a message telling me to shut down). The man in the shop that I bought the G5 from knows nothing about Macs (his usual business is selling PC's) and he does not know what the password is. Anyone have any ideas what is causing the kernel panic. Plus what I can do to remedy this problem. Plus if there are any other ways to change the password.