diff --git a/common/dialogs/wx_html_report_box.cpp b/common/dialogs/wx_html_report_box.cpp
index ced4446c4d..93a9391b24 100644
--- a/common/dialogs/wx_html_report_box.cpp
+++ b/common/dialogs/wx_html_report_box.cpp
@@ -34,6 +34,10 @@ WX_HTML_REPORT_BOX::WX_HTML_REPORT_BOX( wxWindow* parent, wxWindowID id, const w
 REPORTER& WX_HTML_REPORT_BOX::Report( const wxString& aText, SEVERITY aSeverity )
 {
     m_messages.push_back( aText );
+
+    if( m_immediateMode )
+        Flush();
+
     return *this;
 }
 
diff --git a/common/dialogs/wx_html_report_box.h b/common/dialogs/wx_html_report_box.h
index abdddbb587..40efc9193e 100644
--- a/common/dialogs/wx_html_report_box.h
+++ b/common/dialogs/wx_html_report_box.h
@@ -44,6 +44,8 @@ public:
     void SetUnits( EDA_UNITS aUnits ) { m_units = aUnits; }
     EDA_UNITS GetUnits() const override { return m_units; }
 
+    void SetImmediateMode() { m_immediateMode = true; }
+
     void Flush();
     void Clear();
 
@@ -53,6 +55,10 @@ private:
 
     EDA_UNITS             m_units;
 
+    // Indicates messages should be flushed as they are added.  Required for progress-related
+    // reports, but can be very slow for larger reports.
+    bool                  m_immediateMode;
+
     ///> copy of the report, stored for filtering
     std::vector<wxString> m_messages;
 };
diff --git a/common/widgets/wx_angle_text.cpp b/common/widgets/wx_angle_text.cpp
index 3a06eafa7f..12e554cae4 100644
--- a/common/widgets/wx_angle_text.cpp
+++ b/common/widgets/wx_angle_text.cpp
@@ -96,8 +96,13 @@ wxSize WX_ANGLE_TEXT::GetTextSize( wxWindow* aWindow, const wxString& aLabel )
     wxFont font = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT );
 
 #ifdef __WXMAC__
-    // Rotated text looks visually smaller on OSX
+    // Rotated text looks visually smaller on OSX...
     font.SetPointSize( font.GetPointSize() + 2 );
+#elif __WXGTK3__
+    // TODO: needs testing...
+#else
+    // ... but larger on MSW
+    font.SetPointSize( font.GetPointSize() - 2 );
 #endif
 
     // Measure the size of the text
diff --git a/pcbnew/dialogs/dialog_drc.cpp b/pcbnew/dialogs/dialog_drc.cpp
index 0c6bdaf330..0325f3b81a 100644
--- a/pcbnew/dialogs/dialog_drc.cpp
+++ b/pcbnew/dialogs/dialog_drc.cpp
@@ -63,6 +63,8 @@ DIALOG_DRC::DIALOG_DRC( PCB_EDIT_FRAME* aEditorFrame, wxWindow* aParent ) :
     m_brdEditor    = aEditorFrame;
     m_currentBoard = m_brdEditor->GetBoard();
 
+    m_messages->SetImmediateMode();
+
     m_markerTreeModel = new RC_TREE_MODEL( m_brdEditor, m_markerDataView );
     m_markerDataView->AssociateModel( m_markerTreeModel );
 
@@ -167,7 +169,7 @@ void DIALOG_DRC::AdvancePhase( const wxString& aMessage )
     PROGRESS_REPORTER::AdvancePhase( aMessage );
     SetCurrentProgress( 0.0 );
 
-    m_Messages->Report( aMessage + "<br>" );
+    m_messages->Report( aMessage );
 }
 
 
@@ -217,12 +219,12 @@ void DIALOG_DRC::OnRunDRCClick( wxCommandEvent& aEvent )
         m_DeleteAllMarkersButton->Enable( false );
         m_saveReport->Enable( false );
 
-        m_Messages->Clear();
-        m_Messages->Report( _( "DRC incomplete: could not compile design rules.  " )
-                        + wxT( "<a href='boardsetup'>" )
-                        + _( "Show design rules." )
-                        + wxT( "</a>" ) );
-        m_Messages->Flush();
+        m_messages->Clear();
+        m_messages->Report( _( "DRC incomplete: could not compile design rules.  " )
+                            + wxT( "<a href='boardsetup'>" )
+                            + _( "Show design rules." )
+                            + wxT( "</a>" ) );
+        m_messages->Flush();
 
         Raise();
         return;
@@ -240,7 +242,7 @@ void DIALOG_DRC::OnRunDRCClick( wxCommandEvent& aEvent )
     Raise();
 
     m_runningResultsBook->ChangeSelection( 0 );   // Display the "Tests Running..." tab
-    m_Messages->Clear();
+    m_messages->Clear();
     wxYield();                                    // Allow time slice to refresh Messages
 
     m_running = true;
@@ -254,9 +256,9 @@ void DIALOG_DRC::OnRunDRCClick( wxCommandEvent& aEvent )
                        testFootprints );
 
     if( m_cancelled )
-        m_Messages->Report( _( "-------- DRC cancelled by user.<br><br>" ) );
+        m_messages->Report( _( "-------- DRC cancelled by user.<br><br>" ) );
     else
-        m_Messages->Report( _( "Done.<br><br>" ) );
+        m_messages->Report( _( "Done.<br><br>" ) );
 
     Raise();
     wxYield();                                    // Allow time slice to refresh Messages
@@ -592,12 +594,12 @@ void DIALOG_DRC::OnSaveReport( wxCommandEvent& aEvent )
 
     if( writeReport( fn.GetFullPath() ) )
     {
-        m_Messages->Report( wxString::Format( _( "Report file '%s' created<br>" ),
+        m_messages->Report( wxString::Format( _( "Report file '%s' created<br>" ),
                                               fn.GetFullPath() ) );
     }
     else
     {
-        DisplayError( this, wxString::Format( _( "Unable to create report file '%s'" ),
+        DisplayError( this, wxString::Format( _( "Unable to create report file '%s'<br>" ),
                                               fn.GetFullPath() ) );
     }
 }
diff --git a/pcbnew/dialogs/dialog_drc_base.cpp b/pcbnew/dialogs/dialog_drc_base.cpp
index cd12a91711..5c76cf4b81 100644
--- a/pcbnew/dialogs/dialog_drc_base.cpp
+++ b/pcbnew/dialogs/dialog_drc_base.cpp
@@ -62,8 +62,8 @@ DIALOG_DRC_BASE::DIALOG_DRC_BASE( wxWindow* parent, wxWindowID id, const wxStrin
 	wxBoxSizer* bSizer10;
 	bSizer10 = new wxBoxSizer( wxVERTICAL );
 
-	m_Messages = new WX_HTML_REPORT_BOX( m_panelMessages, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxHW_SCROLLBAR_AUTO );
-	bSizer10->Add( m_Messages, 1, wxEXPAND|wxTOP|wxRIGHT|wxLEFT, 5 );
+    m_messages = new WX_HTML_REPORT_BOX( m_panelMessages, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxHW_SCROLLBAR_AUTO );
+	bSizer10->Add( m_messages, 1, wxEXPAND | wxTOP | wxRIGHT | wxLEFT, 5 );
 
 	wxBoxSizer* bGaugeMargins;
 	bGaugeMargins = new wxBoxSizer( wxVERTICAL );
@@ -224,7 +224,7 @@ DIALOG_DRC_BASE::DIALOG_DRC_BASE( wxWindow* parent, wxWindowID id, const wxStrin
 	// Connect Events
 	this->Connect( wxEVT_ACTIVATE, wxActivateEventHandler( DIALOG_DRC_BASE::OnActivateDlg ) );
 	this->Connect( wxEVT_CLOSE_WINDOW, wxCloseEventHandler( DIALOG_DRC_BASE::OnClose ) );
-	m_Messages->Connect( wxEVT_COMMAND_HTML_LINK_CLICKED, wxHtmlLinkEventHandler( DIALOG_DRC_BASE::OnErrorLinkClicked ), NULL, this );
+	m_messages->Connect( wxEVT_COMMAND_HTML_LINK_CLICKED, wxHtmlLinkEventHandler( DIALOG_DRC_BASE::OnErrorLinkClicked ), NULL, this );
 	m_Notebook->Connect( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED, wxNotebookEventHandler( DIALOG_DRC_BASE::OnChangingNotebookPage ), NULL, this );
 	m_markerDataView->Connect( wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, wxDataViewEventHandler( DIALOG_DRC_BASE::OnDRCItemDClick ), NULL, this );
 	m_markerDataView->Connect( wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, wxDataViewEventHandler( DIALOG_DRC_BASE::OnDRCItemRClick ), NULL, this );
@@ -249,7 +249,7 @@ DIALOG_DRC_BASE::~DIALOG_DRC_BASE()
 	// Disconnect Events
 	this->Disconnect( wxEVT_ACTIVATE, wxActivateEventHandler( DIALOG_DRC_BASE::OnActivateDlg ) );
 	this->Disconnect( wxEVT_CLOSE_WINDOW, wxCloseEventHandler( DIALOG_DRC_BASE::OnClose ) );
-	m_Messages->Disconnect( wxEVT_COMMAND_HTML_LINK_CLICKED, wxHtmlLinkEventHandler( DIALOG_DRC_BASE::OnErrorLinkClicked ), NULL, this );
+	m_messages->Disconnect( wxEVT_COMMAND_HTML_LINK_CLICKED, wxHtmlLinkEventHandler( DIALOG_DRC_BASE::OnErrorLinkClicked ), NULL, this );
 	m_Notebook->Disconnect( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED, wxNotebookEventHandler( DIALOG_DRC_BASE::OnChangingNotebookPage ), NULL, this );
 	m_markerDataView->Disconnect( wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, wxDataViewEventHandler( DIALOG_DRC_BASE::OnDRCItemDClick ), NULL, this );
 	m_markerDataView->Disconnect( wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, wxDataViewEventHandler( DIALOG_DRC_BASE::OnDRCItemRClick ), NULL, this );
diff --git a/pcbnew/dialogs/dialog_drc_base.fbp b/pcbnew/dialogs/dialog_drc_base.fbp
index b328692e68..6d934a7162 100644
--- a/pcbnew/dialogs/dialog_drc_base.fbp
+++ b/pcbnew/dialogs/dialog_drc_base.fbp
@@ -619,7 +619,7 @@
                                                                 <property name="minimize_button">0</property>
                                                                 <property name="minimum_size"></property>
                                                                 <property name="moveable">1</property>
-                                                                <property name="name">m_Messages</property>
+                                                                <property name="name">m_messages</property>
                                                                 <property name="pane_border">1</property>
                                                                 <property name="pane_position"></property>
                                                                 <property name="pane_size"></property>
diff --git a/pcbnew/dialogs/dialog_drc_base.h b/pcbnew/dialogs/dialog_drc_base.h
index 87238e39ee..3efcba8abb 100644
--- a/pcbnew/dialogs/dialog_drc_base.h
+++ b/pcbnew/dialogs/dialog_drc_base.h
@@ -56,7 +56,7 @@ class DIALOG_DRC_BASE : public DIALOG_SHIM
 		wxPanel* running;
 		wxNotebook* m_runningNotebook;
 		wxPanel* m_panelMessages;
-		WX_HTML_REPORT_BOX* m_Messages;
+		WX_HTML_REPORT_BOX* m_messages;
 		wxGauge* m_gauge;
 		wxPanel* results;
 		wxNotebook* m_Notebook;