I've tried Leos4All and iDeneb 10.5.6.

The Leos distro starts to load the installer and then reboots prior to getting to the installer.

iDeneb 10.5.6 boots to the installer perfect, and installs perfectly. However, on reboot from the hard drive, I get an eternal apple + spinning cursor.

I chose the removefirewire fix, CPUs1 fix and the ACPI fix during the install, as well as the GMA 950 graphics drivers.

For the time being, I'm back to XP.

It has the 600 series bios installed currently.