plank crashed with signal 5 in plank_dock_items_construct()

upon login. only conky running aswell

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: plank 0.2.0~bzr718+dnd376-0ubuntu1~12.10~ricotz1 [origin: LP-PPA-ricotz-docky]
ProcVersionSignature: Ubuntu 3.5.0-22.33-generic 3.5.7.2
Uname: Linux 3.5.0-22-generic x86_64
ApportVersion: 2.6.1-0ubuntu9
Architecture: amd64
CrashDB: plank
Date: Tue Jan 8 11:37:10 2013
ExecutablePath: /usr/bin/plank
InstallationDate: Installed on 2013-01-07 (0 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MarkForUpload: True
ProcCmdline: plank
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 5
SourcePackage: plank
StacktraceTop:
 plank_dock_items_construct () from /usr/lib/x86_64-linux-gnu/libplank.so.0
 plank_dock_controller_construct () from /usr/lib/x86_64-linux-gnu/libplank.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libplank.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libplank.so.0
 ?? ()
SuspiciousXErrors.txt:

ThirdParty: True
Title: plank crashed with signal 5 in plank_dock_items_construct()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo