Switching from Classic Desktop to UNR Desktop crashes Nautilus

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Binary package hint: nautilus

Using UNR 9.10 Daily build 09/03/2009

Switched to classic desktop mode from UNR
Attempted to switch back from classic to UNR but had no response
After restart system was still in classic mode
Attempted to switch to UNR again, but nautilus crashed and classic menu bar still had focus. Partial UNR appears.

ProblemType: Crash
Architecture: i386
Date: Fri Sep 4 21:09:04 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/nautilus
Package: nautilus 1:2.27.91-0ubuntu3
ProcCmdline: nautilus
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-9.29-generic
SegvAnalysis:
 Segfault happened at: 0x81986a6: mov (%ecx),%eax
 PC (0x081986a6) ok
 source "(%ecx)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: nautilus
StacktraceTop:
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Tags: ubuntu-unr
Title: nautilus crashed with SIGSEGV
Uname: Linux 2.6.31-9-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #403549, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.