Changing to libgl1-mesa-glx package since this is definitely not a bug in ubuntuone-client. The error report is strange, since it says that the kernel running is still 2.6.38 (it's 3.2.0 in precise at the moment), so this may point to partial upgrade.
If you are repeatedly getting this problem, please check whether all packages are updated properly. If all the packages are updated, there are no held packages and no broken ones, then please provide the info whether the bug happens when you run the following $ python -c "import gtk" ** Package changed: ubuntuone-control-panel (Ubuntu) => mesa (Ubuntu) ** Changed in: mesa (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/911611 Title: ubuntuone-control-panel-gtk crashed with ImportError in /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py: /usr/lib/i386-linux-gnu/mesa/libGL.so.1: undefined symbol: xcb_glx_set_client_info_2arb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/911611/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs