Libreoffice Spreadsheet does not integrate well into Unity

[Gabor Toth]

When opening a Spreadsheet document (did it with excel last) by double clicking on it and having Libreofice fire up and open the document, the integration of Libreoffice into unity seems broken. While the document opens fine and one can work with it the following is happening:
One can not go to the document opened with Alt+Tab as it is not shown on the list and can not be jumped on it unless one has just jumped off of it and then can go straight back.
The document either appears as an empty space in the Unity panel on the left or appears as a Spreadsheet icon and an empty space on it. In the first case one can not click on it and get to the document.
I am attaching a screenshot of this. This happens pretty much all the time. I have attempted to report this as a bug on the Libreoffice bog report too, could not see if it went through on the site - my internet was slow and while I clicked on send report and it did something the page did not change. Anyhow, it seems more like a Unity problem since the Libreoffice stuff actually does work just fine.
I am running a fresh install of Ubuntu 12.04.1, it was the same on 12.04 too. It is a Dell Inspiron 17R laptop with 4 GB RAM.

Gabor

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.16.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic x86_64
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
Date: Thu Sep 27 15:33:51 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)