calibre-parallel crashed with IOError in answer_challenge(): [Errno 104] Connection reset by peer

Binary package hint: calibre

Just started calibre and stuck, only splashscreen displayed and gray main window that was stuck.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: calibre 0.7.32+dfsg-1build1
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic x86_64
Architecture: amd64
Date: Mon Jan 10 18:56:56 2011
ExecutablePath: /usr/bin/calibre-parallel
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: python /usr/bin/calibre-parallel
ProcEnviron:
 LANG=cs_CZ.utf8
 SHELL=/bin/bash
 LANGUAGE=en
 LC_MESSAGES=en_AG.utf8
PythonArgs: ['/usr/bin/calibre-parallel']
SourcePackage: calibre
Title: calibre-parallel crashed with IOError in answer_challenge(): [Errno 104] Connection reset by peer
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare