nautilus crashed with SIGSEGV in gtk_action_get_name()

Trying to open a folder containing .dat files, or my Dropbox folder, and nautilus crashes.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: nautilus 1:3.8.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
Uname: Linux 3.11.0-4-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.1-0ubuntu2
Architecture: amd64
Date: Thu Aug 29 08:59:27 2013
ExecutablePath: /usr/bin/nautilus
GsettingsChanges:
 b'org.gnome.nautilus.window-state' b'geometry' b"'775x544+65+24'"
 b'org.gnome.nautilus.window-state' b'sidebar-width' b'147'
InstallationDate: Installed on 2013-02-05 (204 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
ProcCmdline: nautilus -n
ProcEnviron:
 LANGUAGE=en_AU:en
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f63720eadd6 <gtk_action_get_name+22>: cmp %rax,(%rdx)
 PC (0x7f63720eadd6) ok
 source "%rax" ok
 destination "(%rdx)" (0xaaaaaaaaaaaaaaaa) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: nautilus
StacktraceTop:
 gtk_action_get_name () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: nautilus crashed with SIGSEGV in gtk_action_get_name()
UpgradeStatus: Upgraded to saucy on 2013-08-13 (15 days ago)
UserGroups: adm cdrom dip games lpadmin plugdev sambashare sudo vboxusers