ubiquity-dm crashed with XStartupError in run()

[MarcRandolph]

Binary package hint: ubiquity

After booting up install .iso on USB stick, the language selection screen displayed for a few seconds, and then the screen cleared and system booted to desktop. Clicking on "Install Mythbuntu 9.10" resulted in this crash (and nothing else... can't seem to install).

Using daily disk from 15 Oct 2009

ProblemType: Crash
Architecture: i386
Date: Fri Oct 16 02:09:12 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/ubiquity-dm
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Mythbuntu 9.10 "Karmic Koala" - Alpha i386 (20091015)
Package: ubiquity 2.0.0
ProcCmdline: /usr/bin/python /usr/bin/ubiquity-dm vt7 :0 hostname /usr/bin/ubiquity --only
ProcEnviron:
 LANGUAGE=
 PATH=(custom, no user)
 LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-14.46-generic
PythonArgs: ['/usr/bin/ubiquity-dm', 'vt7', ':0', 'hostname', '/usr/bin/ubiquity', '--only']
SourcePackage: ubiquity
Title: ubiquity-dm crashed with XStartupError in run()
Uname: Linux 2.6.31-14-generic i686
UserGroups:

[Evan (ev)]

From UbiquityDm:

Fatal server error:
Server is already active for display 0
        If this server is no longer running, remove /tmp/.X0-lock
        and start again.

[Evan (ev)]

Can you please boot the live CD, select your language, then arrow down to the "Install Ubuntu" option and hit F6 on it. Hit escape to clear the menu that appears and then add "--debug " just before the "--" mark, so it will look something like "quiet splash --debug --". Please then press enter to boot the CD, and when the installer crashes, attach /var/log/syslog and /var/log/installer/dm to this bug report.

Thanks!