Index: trunk/src/org/openstreetmap/josm/gui/layer/AbstractTileSourceLayer.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/layer/AbstractTileSourceLayer.java	(revision 8600)
+++ trunk/src/org/openstreetmap/josm/gui/layer/AbstractTileSourceLayer.java	(revision 8601)
@@ -593,4 +593,8 @@
             }
         });
+
+        // FIXME: why do we need this? Without this, if you add a WMS layer and do not move the mouse, sometimes, tiles do not
+        // start loading.
+        Main.map.repaint(500);
     }