update-manager crashed with SIGABRT in raise()

[Callum Williams]

Crashed my 12.04 laptop.
Update-manager has been prompting me to do a partial upgrade over the last 2 weeks (I know it can be a bad idea to do partial upgrades) but I tried to do it a just to see what it wanted to upgrade/remove but update-manager crashed and then my computer screen went black and I couldn't get it back so I had to power off my laptop. After I re-booted it I got the update-manager has crashed warning.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.4
ProcVersionSignature: Ubuntu 3.2.0-12.21-generic 3.2.2
Uname: Linux 3.2.0-12-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Sat Feb 11 01:05:08 2012
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:

InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/update-manager --dist-upgrade
Signal: 6
SourcePackage: update-manager
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
Title: update-manager crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to precise on 2012-02-12 (0 days ago)
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #930004, 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.