The modules don't exist. There is no .so files in the expected directory that match those names.
Is this important, ie: is that a Fatal error and the reason for X Windows not starting?
chroot /home/diskless/<MD_Device_ID> dpkg -l | egrep -v '^ii|^un|^rc'
and see how many broken packages do you have
I have never heard of this AvWizard thing. I assume that it is either part of Pluto (new to .40?) or part of XOrg setup.
It's part of .40
Should I attempt to find and install these missing modules? How do I do that?
You can try to chroot into the MDs filesystem and run "apt-get -f install" and similar and see what errors do you get.
What about the line 'Couldn't open RGB_DB '/usr/X11R6/lib/X11/rgb' '
Is this important. That directory mentioned does not exist, so I RGB_DB would create itself, but no luck.
This is not important.
Is there a setup that I can re-run or set some DB flag so it reruns?
In the media directors web page, there's a button called "Rebuild image" for each Media Director. If the chroot and everything else fails, you can use this button to rebuild the Media Director filesystem from scratch and re-install the MD.
Please also run the "dpkg -l | egrep '^ii|^rc|^un' " command on your Core and see if you have any broken packages there.
I am not sure that remote assistance will work, last time I tried it, it got nowhere. It will definately need to be on a different port as all port 80 access is blocked by my ISP, due to some 'no servers' rule.
Remote assistance has an option to use port 22 instead of 80. You could also try that.
Please advise me what the next step should be. I will learn a little bit more about XOrg but my time is quite limited at the moment.
Try the things I named above, and let me know what result do you get.