We have a psystar pc with windows 7 on one hard drive and leopard on another. Not my smartest purchase. It has ahci bios version 1.07. Ever since I tried to install ubuntu, the pc won't boot leopard. Hangs at the verifying DMI pool step. Still boots windows 7 fine. I can see both hard drives by booting linux off of a usb stick. Appreciate any suggestions as to file (s) to edit or other steps get past the verifying dmi step and restore the ability to boot leopard. Thx