GDM Broken After Upgrade Via Swaret

After upgrading some packages, X not longer starts normally. It tries, then errors saying that an X server is already running, do I want to try another display. Answering yes or no causes the same symptom, restart attempt and fails.

Killing all GDM pids and running startx gets me into KDE. I normally run XCFE4 from GDM.

XFree86.log said that there were multiple X servers running and no screens defined (paraphrasing as the log has been overwritten.

Packages upgraded:
Mar 20 14:14 atk-1.6.0-i486-1.tgz
Mar 20 14:14 coreutils-5.2.1-i486-1.tgz
Mar 20 14:16 gimp-2.0pre4-i486-1.tgz
Mar 20 14:16 glib2-2.4.0-i486-1.tgz
Mar 20 14:17 gtk+2-2.4.0-i486-1.tgz
Mar 20 14:17 pango-1.4.0-i486-1.tgz

What can I do to further diagnose?
Anyone else having trouble with one of these packages? If so, which ones might I downgrade and to what?

note to self: Do not blindly upgrade just because swaret says that you can.

Are you running dropline gnome? Those packages look like some of the ones that won't be updated in dropline until gnome 2.6 is released next week.

Only the vanilla Gnome is installed. Rarely used, but it's there.
No Dropline.

I had the same problem yesterday after my swaret --upgrade. I had to switch to KDM in /etc/rc.d/rc4 to get a log in manager GDM kept giving me the same error.

I have the same problem.

Downgrade from gtk+2-2.4.0-i486-1.tgz back to gtk+2-2.2.4-i486-1.tgz.

Downgrading to 2.2.4 fixed it. Thanks for all of the responses.
Much appreciated.