... • Install" option.) A clean installation provides a healthier, more glitch-proof copy of 10.5 See "The Clean Install" on Section A.6 MacOSX10.5 In times of dire troubleshooting, when nothing ... troubleshooting, when nothing in Appendix B has helped, you can actually give yourself a fresh copy of 10.5, even though it's already on the hard drive See "The Clean Install" on Section A.6 ...