jockey-backend crashed with TypeError in pulse_items(): an integer is required

[Fabio Marconi]

Hello
Trying to install proprietary drivers at first boot, it crash but the process is completed.
Thanks
Fabio

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: jockey-common 0.9.4-0ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
Date: Thu Sep 22 21:27:12 2011
ExecutablePath: /usr/share/jockey/jockey-backend
InterpreterPath: /usr/bin/python2.7
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 004: ID 0718:0628 Imation Corp.
 Bus 002 Device 002: ID 046d:c313 Logitech, Inc.
 Bus 002 Device 003: ID 046d:c050 Logitech, Inc. RX 250 Optical Mouse
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/jockey/jockey-backend --debug -l /var/log/jockey.log
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic root=UUID=b1bb7b57-e9da-438c-801a-181e783c0988 ro quiet splash vt.handoff=7
PythonArgs: ['/usr/share/jockey/jockey-backend', '--debug', '-l', '/var/log/jockey.log']
SourcePackage: jockey
Title: jockey-backend crashed with TypeError in pulse_items(): an integer is required
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/python2.7/dist-packages/apt/progress/old.py", line 121, in pulse_items
     if self.currentCPS > 0:
 TypeError: an integer is required
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 11/03/2005
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.50
dmi.board.asset.tag: 00000000
dmi.board.name: K8NF4G-SATA2
dmi.board.version: 1.00
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.50:bd11/03/2005:svn:pnK8NF4G-SATA2:pvr1.00:rvn:rnK8NF4G-SATA2:rvr1.00:
dmi.product.name: K8NF4G-SATA2
dmi.product.version: 1.00

[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 #841366, 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.