Gnome-do refuses to load

Hi there.
I managed to install and run gnome-do fine yesterday. Then my system crashed, and it's been refusing to load since.
Nothing has changed on my PC - so I tried apt-get purge gnome-do and reinstalling it, but i'm still getting the same error message:

(/usr/lib/gnome-do/Do.exe:2203): GLib-WARNING **: g_set_prgname() called multiple times

Unhandled Exception: System.Xml.XmlException: Document element did not appear. Line 1, position 1.
  at Mono.Xml2.XmlTextReader.Read () [0x00000]
  at System.Xml.XmlTextReader.Read () [0x00000]
  at System.Xml.XmlReader.MoveToContent () [0x00000]
  at Mono.Addins.Database.DatabaseConfiguration.Read (System.String file) [0x00000]
  at Mono.Addins.Database.AddinDatabase.get_Configuration () [0x00000]
  at Mono.Addins.Database.AddinDatabase.IsAddinEnabled (System.String domain, System.String id, Boolean exactVersionMatch) [0x00000]
  at Mono.Addins.Addin.get_Enabled () [0x00000]
  at Mono.Addins.Database.AddinDatabase.IsAddinEnabled (System.String domain, System.String id) [0x00000]
  at Mono.Addins.AddinRegistry.IsAddinEnabled (System.String id) [0x00000]
  at Do.Core.PluginManager.EnableDisabledPlugins (IEnumerable`1 savedPlugins) [0x00000]
  at Do.Core.PluginManager.RefreshPlugins (IEnumerable`1 savedPlugins) [0x00000]
  at Do.Core.PluginManager.Initialize () [0x00000]
  at Do.Do.Main (System.String[] args) [0x00000]

Reading the other bugs, i've tried to remove gnome-do-plugins, but that's not had any effect, so I thought I'd best post it here.