Index: trunk/src/org/openstreetmap/josm/actions/SimplifyWayAction.java
===================================================================
--- trunk/src/org/openstreetmap/josm/actions/SimplifyWayAction.java	(revision 15470)
+++ trunk/src/org/openstreetmap/josm/actions/SimplifyWayAction.java	(revision 15471)
@@ -134,5 +134,6 @@
         q.add(new JLabel(tr("Maximum error (meters): ")));
         JSpinner n = new JSpinner(new SpinnerNumberModel(
-                s.getDouble(keyError, 3.0), 0.01, 100, 0.5));
+                s.getDouble(keyError, 3.0), 0.01, null, 0.5));
+        ((JSpinner.DefaultEditor) n.getEditor()).getTextField().setColumns(4);
         q.add(n);
         q.setBorder(BorderFactory.createEmptyBorder(14, 0, 10, 0));