I am having some real "first" problems with my Mac Pro. The "repair" function is not able to do anything with it. Before I replace the disc, is there something I can do without replacing the disc? I have no idea what this malfunction is or how o understand it. This is my first Mac since the late '90's and I expected problems, it's a computer, and am not sure of the steps I need to analyze the problem or how to correct it. The only thing I need to back up are my clients photographs. The rest is replaceable. Perhaps I should also get advice on how to properly burn CD's for b/u of my wifes email. Well, my email also. It's a Xeon. I think someone used it and may have introduced a virus. I have no idea of the fact of this, just a suspicion. Be that as it may, how do I correct the problem? Thanks.