Index: trunk/src/org/openstreetmap/josm/gui/tagging/TaggingPresetReader.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/tagging/TaggingPresetReader.java	(revision 6143)
+++ trunk/src/org/openstreetmap/josm/gui/tagging/TaggingPresetReader.java	(revision 6145)
@@ -199,5 +199,5 @@
                 JOptionPane.showMessageDialog(
                         Main.parent,
-                        tr("Error parsing {0}: ", source)+e.getMessage(),
+                        "<html>" + tr("Error parsing {0}: ", source) + "<br><br><table width=600>" + e.getMessage() + "</table></html>",
                         tr("Error"),
                         JOptionPane.ERROR_MESSAGE
