Index: trunk/BNC/src/bnchelp.html
===================================================================
--- trunk/BNC/src/bnchelp.html	(revision 7539)
+++ trunk/BNC/src/bnchelp.html	(revision 7540)
@@ -2950,5 +2950,5 @@
 
 <p>
-The default value for 'SNX TRO Directory' is an empty option field, meaning that BNC will not save SINEX Troposphere files.
+The default value for 'SNX TRO Directory' is an empty option field, meaning that BNC will not save SINEX Troposphere files. If a specified directory does not exist, BNC will not create SINEX Troposphere files.
 </p>