blueish-white bar on screen...

hi,

i searched for this problem and could find no previous report of it.

i just netinstalled 11.0 on apple ibook g4 powerpc. the install seems to have gone okay but when i reboot for first login i get a blueish-white colored bar about 1/3 of the way from the bottom of the screen. the rest of the screen is black.

pressing ctrl-alt f1 does nothing.

please advise.