Tried the ATA driver again now that there's a simple switch option. It seems to work on my development machine as long as the directory /boot/system/add-ons/kernel/busses/ide and its contents are still present, otherwise I go into KDL. Not sure why that would be so at the moment.
A CD build also booted on my Athlon, but wouldn't go past the 4th icon on my neighbor's Macbook Plus.
Rob
