diff --git a/install/tarrasch.iss b/install/tarrasch.iss
index 71e8662..1551f6b 100644
--- a/install/tarrasch.iss
+++ b/install/tarrasch.iss
@@ -3,7 +3,7 @@
 
 [Setup]
 AppName=Tarrasch Chess GUI
-AppVerName=Tarrasch Chess GUI V3.10c-g-Windows
+AppVerName=Tarrasch Chess GUI V3.11a-g-Windows
 AppPublisher=Triple Happy Ltd.
 AppPublisherURL=http://www.triplehappy.com
 AppSupportURL=http://www.triplehappy.com
diff --git a/src/Appdefs.h b/src/Appdefs.h
index 8d50dd3..9a9d5c1 100644
--- a/src/Appdefs.h
+++ b/src/Appdefs.h
@@ -12,7 +12,7 @@
 
 #define MASTER_VERSION_BASE "V3.11a"    //add asterisk prefix between releases
 
-#define USING_KINGBASE
+//#define USING_KINGBASE
 // no suffix indicates default .tdb is kingbase
 #ifdef  USING_KINGBASE
 #ifdef THC_WINDOWS