If it helps ....
I restored a known working xorg.conf to my acer revo mds (from a GlobalUpgrades.sh backup). That fixes it and they no longer go into the Wizard on reboot.
My hybrid core still does but I rarely reboot that.
I think the default xorg.conf generated by the system since late January is missing something.
From memory ... if I rm xorg.conf* from /etc/X11/ and reboot ... the wizard runs and creates a xorg.conf. However this new conf is ignored when the system reboots and the wizard runs again.
This does not seem to happen with a known good xorg.conf.
Also worth mentioning that around the same time I was having lots of 'Failed to setup X' issues. I actually had it on all three mds at one point. I think that is why I resorted to the backups.
All my mds have nvidia graphics cards.
Let me know if I can help troubleshoot this.