The documentation at
	http://www.dk.netbsd.org/Ports/macppc/faq.html
Says:

	The NetBSD 1.5.3 and later versions of ofwboot.xcf have been set to 
use 640000. Therefore, you should use a load-base of 600000.

	The ofwboot.xcf from NetBSD versions prior to 1.5.3 had been set to 
use 600000. Therefore, if you're trying to boot using this bootloader, 
you should use a load-base of 640000 or get a newer version of 
ofwboot.xcf

Does this mean I have to set the load-base to 600000 or to 640000 when 
running 1.5.3 or later. I'm a bit confused, and someone should probably 
correct this.

Daniel