I am running PoL 4.2.1 on Ubuntu 13.10 64-bit. I have an activated version of Office 2010 Home and Student which was previously running flawlessly. At some point the setup became corrupted. When I start any of the apps, Office reports: "an error occurred and this feature is no longer functioning properly. Please run Setup and Select "Repair:" to restore this application.
The only way I could figure out to run the installer, was to select the app in PoL admin interface and go the the "Configure" option. Under the Wine tab, I selected the Wine uninstaller. In the Add/Remove programs screen I am able to choose Modify which launched the "Change your installation" dialog. From here I can select "Repair"; however, the system can't find Office.en-us\ShellUI.MST. If I point it to that location on my hard drive (or even to an external USB key), Office says it's an invalid location, even though the file is definitely in that location.
Office apps still run, but this is just nuisance.
I'm reluctant to blow this away, as it's already activated and am not sure I will be able to reactivate it.