Index: lams_flash/src/central/flash/main.as
===================================================================
diff -u -rde65d00b5bf887f55beabea327159f0df35f0933 -r470bd43cd17fa6128a767fec948850a5815c1c55
--- lams_flash/src/central/flash/main.as	(.../main.as)	(revision de65d00b5bf887f55beabea327159f0df35f0933)
+++ lams_flash/src/central/flash/main.as	(.../main.as)	(revision 470bd43cd17fa6128a767fec948850a5815c1c55)
@@ -72,8 +72,16 @@
 				
 if(StringUtils.isEmpty(isMac)) {
 	_root.isMac = false;
-}				
+}
 
+if(StringUtils.isEmpty(extlmsid)) {
+	_root.extlmsid = null;
+}
+
+if(StringUtils.isEmpty(customCSV)) {
+	_root.customCSV = null;
+} 
+
 //Set stage alignment to top left and prevent scaling
 Stage.align = "TL";
 Stage.scaleMode = "noScale";