A long, long time ago when I first started getting into SharePoint I installed just about every addon I could find (yes, I was an out of control addict I admit it). One these was the Groupboard Workspace 2007.
Since then it has been the bane of my existence. It has caused no end of problems with the SharePoint box I installed it on. It has cause numerous patches to crash. It has prevent the box being migrated to SharePoint 2010 and worst of all even when I uninstalled it, it remains as the screen below shows.
At the end of the day I’m going to have to probably migrate the data manually using templates and Office applications. After that I’m going to incinerate the box it is installed on and throw the ashes to the wind.
In short? Don’t install it on Windows SharePoint.