diff --git a/servers/dotNet/DisplayMap.aspx b/servers/dotNet/DisplayMap.aspx
index 86c3433..59e61e8 100755
--- a/servers/dotNet/DisplayMap.aspx
+++ b/servers/dotNet/DisplayMap.aspx
@@ -61,7 +61,7 @@
         <option value ="120">Auto Refresh - 2 minutes</option>
         <option value ="180">Auto Refresh - 3 minutes</option>
         <option value ="300">Auto Refresh - 5 minutes</option>
-        <option value ="6000">Auto Refresh - 10 minutes</option>
+        <option value ="600">Auto Refresh - 10 minutes</option>
     </select>
 
 	<select id="selectZoomLevel" onchange="changeZoomLevel();" tabindex="3">