systray.py crashed with SIGSEGV in g_return_if_fail_warning()

This happens when I use hplp toolbox gui. Usrually iit locks uo my hard drive and have to hard reboot.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: hplip-data 3.11.5-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-4.5-generic 3.0.0-rc6
Uname: Linux 3.0.0-4-generic i686
Architecture: i386
CupsErrorLog:

Date: Mon Jul 11 15:33:20 2011
ExecutablePath: /usr/share/hplip/systray.py
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110202)
InterpreterPath: /usr/bin/python2.7
Lpstat: device for Deskjet-D1600-series: hp:/usb/Deskjet_D1600_series?serial=CN054C906W05CT
Lsusb:
 Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 005: ID 046d:c31c Logitech, Inc. Keyboard K120 for Business
 Bus 001 Device 004: ID 046d:c05a Logitech, Inc. Optical Mouse M90
 Bus 002 Device 002: ID 03f0:7f11 Hewlett-Packard
MachineType: MICRO-STAR INTERNATIONAL CO., LTD MS-6330
PackageArchitecture: all
Papersize: letter
PpdFiles: Deskjet-D1600-series: HP Deskjet d1600 Series, hpcups 3.11.5
ProcCmdline: python /usr/bin/hp-systray
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-4-generic root=UUID=4765574d-dda6-4222-9e29-30f39ab96ba2 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x80dc8f4: mov 0x8(%eax),%eax
 PC (0x080dc8f4) ok
 source "0x8(%eax)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: hplip
StacktraceTop:
 g_return_if_fail_warning () from /lib/i386-linux-gnu/libglib-2.0.so.0
 gtk_widget_style_get () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
 QGtkStyle::pixelMetric(QStyle::PixelMetric, QStyleOption const*, QWidget const*) const () from /usr/lib/libQtGui.so.4
 QScrollBar::sizeHint() const () from /usr/lib/libQtGui.so.4
 QAbstractScrollAreaPrivate::layoutChildren() () from /usr/lib/libQtGui.so.4
Title: systray.py crashed with SIGSEGV in g_return_if_fail_warning()
UdevDb: Error: [Errno 2] No such file or directory
UpgradeStatus: Upgraded to oneiric on 2011-07-11 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev root sambashare
dmi.bios.date: 10/07/2002
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: 6.00 PG
dmi.board.name: MS-6330
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
dmi.chassis.type: 3
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvr6.00PG:bd10/07/2002:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-6330:pvr:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-6330:rvr:cvn:ct3:cvr:
dmi.product.name: MS-6330
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO., LTD