I sit here beyond stumped with this darned iMac G5. It froze up about a week ago while trying to load iPhoto. No big deal, just restart it. Well, that's the last time it worked. I have since tried restarting, booting from a 10.4 DVD, booting from a 10.5 DVD, using target mode with a firewire cable and trying to figure out a way to install from my MBP. Augggh. The only thing I had mild success with was the 10.4 DVD. I got through part of the first disc, but at some point the screen went blue and just sat there. I can't boot from the 10.5 DVD. I hold the darn option key down and select that boot volume, but then it's just a lot of spinning noise for a few seconds, the white Apple logo screen, then blue screen + silence from optical drive. I thought maybe I could boot the installer from my MBP and then install Leopard onto the iMac when using it in target mode. Nope. Funny thing is when in target mode, my MBP recognizes both the HDD and the Leopard install DVD in the iMac. I have already been to a Genius. He told me I should be able to do a clean install from the Leopard DVD after doing a diagnostic on the HDD. So I'm basically stumped. Part of me thinks something in the motherboard or basic guts of the computer is failing. It REALLY doesn't make sense for the boot from DVD to not work. I don't think I have ever run into that on either a Mac or a PC. So any advice from experts or just people who stayed at a Holiday Inn Express would be great.