I installed an app, Gramps, quite a while ago and went to use it for the first time since loading Ubuntu 12. I opened Dash home, which showed some files I've used recently, but when I went to the app tab nothing loaded except the search bar. The software center shows the app, plus several others, are loaded and I went so far as to update gramps but the page remains blank.
How can I fix that? Many thanks for your help.