Were you upgrading or did you format the hard drive completely? If you just upgraded, try formating the drive and then installing 10.5. I hope you had a back-up of your stuff. On Oct 27, 2007, at 11:13 AM, Bill Fox wrote: > FWIW, I could never get any of the later (didn't try early) > developer releases of 10.5 to even install on my Cube w/stock 450MHz > CPU or w/1.4GHz PowerLogix CPU upgrade. > > I'll be trying the final build (9a581) over the weekend. > > Bill > > On Oct 26, 2007, at 7:29 PM, Gary Heartsfield wrote: > >> Hello all >> >> Just tried to install Leopard on my cube with 1.7 powerlogix. >> >> All was fine ( 40 mins ) then on restart the cube will begin to >> load and instantly power off. >> >> Now it will not boot from disk 10.5 >> >> Just powers off like the shut down was pushed, or pulled the plug. >> >> Can start with option key and select the HD and it takes off then 2 >> seconds later act of the power was pulled in a nice way. ?? >> >> Any thoughts ? >> >> Thanks >> > > _______________________________________________ > Cube mailing list > Cube at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/cube