--- a/flys-client/src/main/java/de/intevation/flys/client/client/ui/GaugeTree.java	Tue Oct 16 13:06:46 2012 +0200
+++ b/flys-client/src/main/java/de/intevation/flys/client/client/ui/GaugeTree.java	Tue Oct 16 14:42:51 2012 +0200
@@ -269,7 +269,7 @@
             if (item instanceof GaugeInfoItem) {
                 boolean setstate = false;
                 GaugeInfoItem gitem = (GaugeInfoItem)item;
-                if (end == null) {
+                if (end == null && gitem.getStart() != null) {
                     if (gitem.getStart() >= start) {
                         setstate = true;
                     }