Only 8-bit color depth?

Howdy --

I'm running MOL 0.9.70 on a 12" aluminum Powerbook (nVidia graphics),
and when I run MOL in console mode, it decides that it can only use an
8-bit color depth. On startup, output includes:

===
Video driver(s): [console_video] 

    1024* 768, depth 8   { 0.0, 60.0, 70.0, 75.0 } Hz

No video mode match the default one.
===

Relevant section of MOL config is:

===

enable_console_video:   yes
vt:                     9
start_on_console:       yes             # switch to console initially
autoswitch_console:     yes             # allow automatic switching to console

===

And my fb.modes generated by molvconfig:

===

# Version 1
# Mac-on-Linux Video Mode Configuration
#
# DO NOT EDIT THIS FILE BY HAND
#
# Created by 'molvconfig'
#
1024 768 1024 768 0 0 13334 144 24 29 3 136 6 0 0
1 4591835 8 1024 0 0 0 0 0 0 0
#
1024 768 1024 768 0 0 12698 176 16 28 1 96 3 3 0
1 4917232 8 1024 0 0 0 0 0 0 0
#
1024 768 1024 768 0 0 15385 160 24 29 3 136 6 0 0
1 3932313 8 1024 0 0 0 0 0 0 0
#
1024 768 1024 768 0 0 10000 16 16 16 16 8 8 0 0
1 0 8 1024 0 0 0 0 0 0 0

===

Any idea how I can get it to use 24 bit color depth like my X session?
Thanks!

-jag