I'm using Ubuntu Gnome 14.04 which is using gnome shell 3.10.4. I installed workrave through the terminal and the first time it launched the small window with the countdown timer displayed and it worked as it should. I closed the window and from then on I could never get it displayed again. I did an uninstall/reinstall, but that didn't work, and I also found out that the applet for workrave doesn't work in gnome shell. In the tweak tool settings under extensions the workrave option is greyed out and has a triangle warning sign.
The program can still be launched and works, but I can't set up my preferences because there's no window for me to interact with. Is there a way to bring back the workrave window so I can change my preferences?