kdm on netbsd/macppc

Hi! This is my first post on this list.. :)
I'm having trouble starting kdm on my NetBSD/macppc 2.0 system. X server can't 
be started and I see in kdm.log that it's because it tries to exec "X vt05".
vt05 is an unrecognized option (and on NetBSD/macppc there aren't any virtual 
consoles apart from the main one). What can I do to make X start without that 
option?

Thank you very much

david