I am experiencing the same problem.
** Attachment added: "result of: (strace gnome-terminal) 2>&1 | tee log2.txt" https://bugs.launchpad.net/ubuntu/+source/gnome-terminal/+bug/763633/+attachment/3771366/+files/log2.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-terminal in Ubuntu. https://bugs.launchpad.net/bugs/763633 Title: GTK applications crash while accessing the menu Status in “gnome-terminal” package in Ubuntu: New Bug description: Binary package hint: gnome-terminal To reproduce, simply access the menu of any GTK application. Reproducable in both unity and classic. The bug appears to be a race condition. It is harder to reproduce when using light-themes because they render the menu so slowly. Almost certainly bug 703988 but I can't reopen that one so opening a new bug instead. ProblemType: Crash DistroRelease: Ubuntu 11.04 Package: gnome-terminal 2.32.1-0ubuntu3 ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38 Uname: Linux 2.6.38-7-generic x86_64 Architecture: amd64 CrashCounter: 1 Date: Sun Apr 17 14:58:43 2011 ExecutablePath: /usr/bin/gnome-terminal InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110322.1) ProcCmdline: gnome-terminusername ProcEnviron: LANGUAGE=en_GB:en LANG=en_GB.UTF-8 SHELL=/bin/bash SegvAnalysis: Segfault happened at: 0x7f1c6a069b8d <g_type_check_instance_cast+61>: mov (%rsi),%r13 PC (0x7f1c6a069b8d) ok source "(%rsi)" (0x0000001d) not located in a known VMA region (needed readable region)! destination "%r13" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: gnome-terminal StacktraceTop: g_type_check_instance_cast () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 ?? () from /usr/lib/libdbusmenu-glib.so.3 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 Title: gnome-terminal crashed with SIGSEGV in g_type_check_instance_cast() UpgradeStatus: Upgraded to natty on 2011-03-28 (19 days ago) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare XsessionErrors: (nautilus:1203): Gtk-WARNING **: Change Desktop Background: missing action Change Desktop Background (nautilus:1203): Gtk-WARNING **: Ubuntu Documentation: missing action Ubuntu Documentation (nautilus:1203): Gtk-WARNING **: Change Desktop Background: missing action Change Desktop Background (nautilus:1203): Gtk-WARNING **: Ubuntu Documentation: missing action Ubuntu Documentation (nautilus:1203): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-terminal/+bug/763633/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

