metacity assert failure: metacity:ERROR:core/boxes.c:1161:meta_rectangle_edge_aligns: code should not be reached

[Colin]

Unfortunately, I'm a novice and can't explain what the bug is. All I know is I get a crash report on my screen, which asks me if I would like to report it. In fact, I get several crash reports. Now I know what is expected form Launch Pad, I'll be more observant next time. Sorry I can't be of more assistance.

ProblemType: Crash
Architecture: i386
AssertionMessage: metacity:ERROR:core/boxes.c:1161:meta_rectangle_edge_aligns: code should not be reached
Date: Wed Nov 4 05:32:29 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/metacity
NonfreeKernelModules: nvidia
Package: metacity 1:2.28.0-0ubuntu1
ProcCmdline: metacity
ProcCwd: /home/vk3ccw
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-16.55-generic
Signal: 6
SourcePackage: metacity
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/tls/i686/cmov/libc.so.6
 abort () from /lib/tls/i686/cmov/libc.so.6
 g_assertion_message () from /lib/libglib-2.0.so.0
 ?? ()
Title: metacity assert failure: metacity:ERROR:core/boxes.c:1161:meta_rectangle_edge_aligns: code should not be reached
Uname: Linux 2.6.28-16-generic i686
UserGroups: adm admin audio cdrom dialout dip fax fuse lpadmin netdev plugdev root sambashare syslog tape users video
XsessionErrors:
 (gnome-settings-daemon:1758): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (nautilus:1789): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (polkit-gnome-authentication-agent-1:1805): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

[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 #437139, 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.