Computer turns off instead of starting install

I am having the same problem as described here:
http://discussions.apple.com/thread.jspa?threadID=1237434
Has anyone found a resolution?

I am/was having this issue as well. I created an install image from a 10.4.6 DVD image. Nothing special, nothing added; just the install disk. The image creation was supposedly successful. I was sharing the image via http on the imaging server. I was seeing the same behavior; the install would seem to start booting (network icon replaced by spinning gear) but then shut down. I tried the install on a G5 workstation and an eMac G4 with the same result.
As part of my troubleshooting I switched the delivery method to NFS from HTTP. Success! I have successfully imaged the eMac. I will try the G5 later today. I hope this helps.

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