diff --git a/pcb_calculator/attenuators/attenuator_classes.h b/pcb_calculator/attenuators/attenuator_classes.h
index 96e21e7159..65a3705ee9 100644
--- a/pcb_calculator/attenuators/attenuator_classes.h
+++ b/pcb_calculator/attenuators/attenuator_classes.h
@@ -47,10 +47,10 @@ protected:
 
 
 protected:
-    // The constructor is protected, because this class is not intendent to be instancied
+    // The constructor is protected, because this class is not intended to be instancied
     ATTENUATOR( ATTENUATORS_TYPE Topology );
 public:
-    ~ATTENUATOR();
+    virtual ~ATTENUATOR();
 
     /**
      * Function Calculate
@@ -76,25 +76,33 @@ public:
 
 class ATTENUATOR_PI : public ATTENUATOR
 {
-public: ATTENUATOR_PI();
+public:
+    ATTENUATOR_PI();
+    ~ATTENUATOR_PI(){};
     virtual bool Calculate();
 };
 
 class ATTENUATOR_TEE : public ATTENUATOR
 {
-public: ATTENUATOR_TEE();
+public:
+    ATTENUATOR_TEE();
+    ~ATTENUATOR_TEE(){};
     virtual bool Calculate();
 };
 
 class ATTENUATOR_BRIDGE : public ATTENUATOR
 {
-public: ATTENUATOR_BRIDGE();
+public:
+    ATTENUATOR_BRIDGE();
+    ~ATTENUATOR_BRIDGE(){};
     virtual bool Calculate();
 };
 
 class ATTENUATOR_SPLITTER : public ATTENUATOR
 {
-public: ATTENUATOR_SPLITTER();
+public:
+    ATTENUATOR_SPLITTER();
+    ~ATTENUATOR_SPLITTER(){};
     virtual bool Calculate();
 };
 
diff --git a/pcbnew/class_board_design_settings.cpp b/pcbnew/class_board_design_settings.cpp
index c74cc1bf01..3aeb663bd3 100644
--- a/pcbnew/class_board_design_settings.cpp
+++ b/pcbnew/class_board_design_settings.cpp
@@ -24,7 +24,7 @@
 #define DEFAULT_TEXT_MODULE_SIZE    Millimeter2iu( 1.5 )
 #define DEFAULT_GR_MODULE_THICKNESS Millimeter2iu( 0.15 )
 
-#define DEFAULT_SOLDERMASK_CLEARANCE Millimeter2iu( 0.1 )
+#define DEFAULT_SOLDERMASK_CLEARANCE Millimeter2iu( 0.2 )
 #define DEFAULT_SOLDERMASK_MIN_WIDTH Millimeter2iu( 0.0 )
 
 
diff --git a/pcbnew/librairi.cpp b/pcbnew/librairi.cpp
index c9ae4dfa90..fe21dd7f0c 100644
--- a/pcbnew/librairi.cpp
+++ b/pcbnew/librairi.cpp
@@ -259,6 +259,7 @@ void FOOTPRINT_EDIT_FRAME::Export_Module( MODULE* aModule, bool aCreateSysLib )
             module->SetOrientation( 0 );
         */
 
+        LOCALE_IO toggle;
         pcb_io.Format( aModule );
 
         FILE* fp = wxFopen( dlg.GetPath(), wxT( "wt" ) );
diff --git a/pcbnew/pcb_parser.cpp b/pcbnew/pcb_parser.cpp
index bb713e2b92..5e868bb34f 100644
--- a/pcbnew/pcb_parser.cpp
+++ b/pcbnew/pcb_parser.cpp
@@ -1700,6 +1700,8 @@ MODULE* PCB_PARSER::parseMODULE() throw( IO_ERROR, PARSE_ERROR )
         }
     }
 
+    module->CalculateBoundingBox();
+
     return module.release();
 }
 
diff --git a/pcbnew/pcbnew.cpp b/pcbnew/pcbnew.cpp
index 75270567c9..76315b6267 100644
--- a/pcbnew/pcbnew.cpp
+++ b/pcbnew/pcbnew.cpp
@@ -193,6 +193,11 @@ Changing extension to .brd." ), GetChars( fn.GetFullPath() ) );
         }
     }
 
+    else
+        // No file to open: initialize a new empty board
+        // using default values for design settings:
+        frame->Clear_Pcb( false );
+
     // update the layer names in the listbox
     frame->ReCreateLayerBox( NULL );