Default to where dicts are installed
Index: qt/main_window.cpp
--- qt/main_window.cpp.orig
+++ qt/main_window.cpp
@@ -1216,7 +1216,7 @@ void MainWindow::onSettingsPreferences()
 void MainWindow::onSettingsChooseDic()
 {
     QString fileName =
-        QFileDialog::getOpenFileName(this, _q("Choose a dictionary"), "", "*.dawg");
+        QFileDialog::getOpenFileName(this, _q("Choose a dictionary"), "${TRUEPREFIX}/share/eliot/", "*.dawg");
     changeDictionary(fileName);
 }
 
