Window buttons sometimes don't appear in LibreOffice

[Aaron Hastings]

This is quite a frustrating bug in LibreOffice that has only occurred for me since Ubuntu 11.10. When opening any LibreOffice app (Writer, Impress, etc.) there are sometimes no window buttons (Close, Minimize, Maximize) in the top-left corner. The only way to close the app is to navigate to File > Exit inside LibreOffice.

This also has a far more frustrating side-effect: the app does not appear in the Alt+Tab application switcher OR in the Unity Launcher. This means I have to switch to the app using Ctrl+W then clicking on it.

I cannot reproduce this bug right now but will attach a screenshot when it happens again.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: libreoffice 1:3.4.3-3ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Sun Oct 23 17:39:51 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: libreoffice
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.