This is just a second report in order to compare.
I am not sure if this is a really a duplicate bugreport.
If so, sorry for that.
ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: software-center 4.1.21
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
Architecture: amd64
Date: Wed Sep 7 21:00:59 2011
ExecutablePath: /usr/share/software-center/software-center-gtk3
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110907)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center-gtk3
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
PythonArgs: ['/usr/bin/software-center-gtk3']
SourcePackage: software-center
Title: software-center-gtk3 crashed with GError in constructor(): Unrecognized image file format
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
