Hello:
I have been running into the above error accompanied by a kernel panic when trying to install. I have retail DVD's for 10.5.1 (Leo) and 10.6.3 (Snow Leo) and have tried the following methods:

- iBoot (nVidia,ATI,Supported) using the 10.5.1 Retail DVD
- Empire EFI using the 10.6.3 DVD
- Boot-132 Generic using the 10.5.1 Retail DVD
- Snow Leopard by Hazard ISO

Somehow I was able to install Kalyway 10.5.2 by running in safe mode (-v -x boot options) and with a couple BIOS tweaks. But with the same BIOS settings and boot options the other methods fail. Most just reset the comp, but on a couple I was able to actually see the kernel panic logs nicely.

I've searched through google and it seems to be a fairly common error, but I haven't been able to get past it with anything I've found.

Any thoughts?

Thanks!
Z

System specs:
Toshiba Qosmio X505-Q860
4 GB DDR3 RAM
NIC: Atheros AR8131 PCIe GigE Controller
Sound: Contextant Pebble High Def Sound
Wireless: Realtek RTL8191SE 802.1n PCIe
Optical: HL-DT-ST DVDRAM GT20F (DVD-RW Multi Drive)