Hi, I've read this thread and I need some help.
I have the same MB Gigabyte GA-MA78GM-S2H but with AMD Phenom II 920, plus 4Gb RAM DDR2 800Mhz, HD 500GB SATA, DVD-RW LG SATA, Internal USB Card Reader and D-Link DWA-110 USB WiFi.
I've installed Windows XP and everything works fine. Now I want to make a triple boot with Windows XP, Windows 7 (for test propose only) and OSx86.
First of all, I've disconnected the Internal USB Card Reader and D-Link DWA-110 USB WiFi because I want to try first the system OOB. I setup my BIOS to use AHCI mode for the SATA drives.
I've tried to use Leo4All but it didn't load the install. Then I tried iPC OSx86 10.5.6. I've followed the install instructions and I didn't select any optionals. I've formatted my SATA drive as Mac OS journaled and MBR partition map. I've choose the default boot loader (Chameleon 1.0.12). The installation has worked ok and I need to reboot. The boot loader loads and everytime when Darwin starts, my computer reboots !!!
I've tried to set "Graphics Mode"="1024x768x32" but it didn't work.

Anyone could help ? Tks in advance.