deluged crashed with AttributeError: 'NoneType' object has no attribute 'write'

[ahunor]

Binary package hint: deluge

Since jaunty upgrade, deluge fails to launch with the following...
if you need, i could strace it.
/var/lib/python-support/python2.6/deluge/ui/gtkui/mainwindow.py:51: GtkWarning: gtk_toolbar_set_icon_size: assertion `icon_size != GTK_ICON_SIZE_INVALID' failed
  "glade/main_window.glade"))
Unhandled exception in thread started by

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/deluged
InterpreterPath: /usr/bin/python2.6
NonfreeKernelModules: nvidia
Package: deluge-core 1.1.5+dfsg-1ubuntu1
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/deluged --port=58846 --config=/home/username/.config/deluge
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
PythonArgs: ['/usr/bin/deluged', '--port=58846', '--config=/home/username/.config/deluge']
SourcePackage: deluge
Title: deluged crashed with AttributeError: 'NoneType' object has no attribute 'write'
Traceback: AttributeError: 'NoneType' object has no attribute 'write'
Uname: Linux 2.6.28-11-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse kvm libvirtd lpadmin netdev plugdev powerdev pulse-access sambashare scanner tape users vboxusers video