This is probably more a Mac issue than a Debian one, but here goes anyway :)
I was happily booting with yaboot for a while, until I needed to
activate the root user in OS X (Tiger) on my 15" PB.. following the
advice of some quick searches online, i ended up doing it the roundabout
way, using the Mac restore disks which once booted allow you to activate
the root password... ( and later found out I can do it just as easily
from within OS X... doh!!)
Long story short, ever since then when I restart the laptop, I never see
yaboot any more... by default it always boots OS X. Further searches
online pointed me to holding some combination of keys when the laptop is
booting, but there must be a setting somewhere I need to set so by
default i hit yaboot and am given the choice which os to boot...
any hints?
Much appreciated!
Joubin