pre-upgrade f12>fbeta14... gdm fails?

[Morgan Read]

Silly I know, asking for trouble...

Got over this little entertaining yum bug:
https://fedoraproject.org/wiki/Common_F14_bugs#F-12_to_F-14_upgrade_results_in_unusable_package_manager_due_to_broken_EVR
...

But now I'm unable to run gnome/gdm/X...

Back in f12 I was running nvidia via akmod-nvidia from nonfree fusion on
a ccrma rt kernel.  I think I've stripped all that out and I'm now
running nouveaux with mesa-dri-drivers-experimental.

gdm fails to load on start up; gdm now produces:
[root at mythtv ~]# gdm now

** (gdm-binary:1645): WARNING **: Failed to acquire org.gnome.DisplayManager

** (gdm-binary:1645): WARNING **: Could not acquire name; bailing out
[root at mythtv ~]#

Any ideas - or is there a better list for me to post to?

Regards,
Morgan.
-- 
Morgan Read
NEW ZEALAND
<mailto:mstuffATreadDOTorgDOTnz>