So Sunday night before I go to bed, I put the old G5 to sleep, only to hear it roaring like a jet turbine a few minutes later, locked up tight as a drum, so I have to hard reset it. Monday morning I go to turn it back on and get HALF a startup chime. Hmm, the can't freaking be good, I thought to myself. Then the G5 just refuses to go any further. So, I unplug it, let it set for ten minutes and restart it, and all goes well. Repair permissions, run daily, weekly, monthly and prebinding scripts in Terminal, and then restart to reset the PRAM. Again - half chime, and then nothing. Hard reset. Will not reboot. Unplug...let sit ten minutes... Restart in single user, run FSCK - makes a couple of repairs..reboot...run again - "Volume appears to be OK." Reboot - half chime and lockup. Fast forward this morning. Apple Store 10:00 a.m.. Empty pockets of $104.96 for DiskWarrior. Go home, boot to CD, DiskWarrior fixes a bunch of crap. Restart - all OK. Try to sleep machine - lockup. Full reformat, 12 hours later and I have everything back. Rebuild iTune, rebuild Mail, rebuild Aperture..THANK GOD iGary's lesson question of the day: Have you made a backup lately? I'm sure glad I did.