The global Default Theme only works if the "song" does not have a Theme in it....Edit a song in the Library, select the "Theme, Copyright info & Comments" Tab. The Theme box should be empty.<br><br>I could not see the right side of the OpenLP window clearly, so here is how I change the default Theme<br><br>In the Theme Manager, right click on a Theme, then select set "Set as Global Default"<br><br>Now preview a song with no Theme listed and it should preview with the new Global Default Theme.<br><br>Another way is to set the Theme in the Song. This way the Theme is always the same for that Song. Makes the presentation much easier as you don't have to change anything when presenting.