All, I've just experienced one of the most unnerving situations. I've a custom built machine that WAS running the following: ECS GeForce 6100SM-M mother board AMD 64 X2 Dual core 5600+ 4GB RAM DDR2 800 Mhz nVidia GT7300 PCIE 256MB video card 2 - SATA Hard drives; 1 - 320 GB WD and 1 - 500GB Seagate 550 watt Antec power supply Fedora 9 x86_64 with all of the latest patches As my Xmas present I upgraded the machine to: Gigabyte MA790X-DS4 mother board AMD Phenom Quad core 9550 8GB RAM DDR2 800 Mhz Retained the video card from above 2 - SATA Hard drives; 1 - 500 GB Seagate and 1 - 1TB Seagate 850 watt Antec power supply I attempted to install, from the same DVD used on the original machine, Fedora 9 x86_64 with 4 failures at just about the same place while installing packages. I used my i386 Fedora 9 DVD and all went well during the install so attempted to do a upgrade to x86_64 without luck. I did a test using my Fedora 8 x86_64 DVD and it installed perfectly. I then attempted to do a upgrade to Fedora 9 without any luck (it appeared to fail at about the same place). I then downloaded and burned another copy of the Fedora 9 x86_64 DVD, checked it and attempted to do another install and one again it failed at about the same place. What could possibly be happening? I since reinstalled Fedora 8, but that has reached it's E-O-L. Should I just attempt to go to Fedora 10 x86_64? Should I have entered something in the boot parameters concerning the additional memory? Any help or advice would be great! Thanks, Gene Poole