diff --git a/CMakeLists.txt b/CMakeLists.txt
index 59863d5..ca20af0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -237,7 +237,6 @@ include_directories (
 	${PROJECT_SOURCE_DIR}/src
 	${PROJECT_SOURCE_DIR}/external/rtaudio
 	${PROJECT_SOURCE_DIR}/external/lodepng 
-	${PROJECT_SOURCE_DIR}/external/fastlz 
 	${PROJECT_SOURCE_DIR}/external/tinyxml
 )
 
diff --git a/src/AppFrame.cpp b/src/AppFrame.cpp
index c27f6cd..8858ac2 100644
--- a/src/AppFrame.cpp
+++ b/src/AppFrame.cpp
@@ -559,4 +559,6 @@ bool AppFrame::loadSession(std::string fileName) {
 
     GetStatusBar()->SetStatusText(wxString::Format(wxT("Loaded session file: %s"), currentSessionFile.c_str()));
     SetTitle(wxString::Format(wxT("%s: %s"), CUBICSDR_TITLE, filePart.c_str()));
+
+    return true;
 }
diff --git a/src/CubicSDR.cpp b/src/CubicSDR.cpp
index e84bcda..cbd6cc6 100644
--- a/src/CubicSDR.cpp
+++ b/src/CubicSDR.cpp
@@ -122,8 +122,6 @@ PrimaryGLContext& CubicSDR::GetContext(wxGLCanvas *canvas) {
     }
     glContext = m_glContext;
 
-    glContext->SetCurrent(*canvas);
-
     return *glContext;
 }
 
diff --git a/src/CubicSDR.h b/src/CubicSDR.h
index f2a24b8..ec57720 100644
--- a/src/CubicSDR.h
+++ b/src/CubicSDR.h
@@ -20,7 +20,7 @@
 class CubicSDR: public wxApp {
 public:
     CubicSDR() :
-    m_glContext(NULL), frequency(DEFAULT_FREQ), sdrThread(NULL), sdrPostThread(NULL), threadCmdQueueSDR(NULL), iqVisualQueue(NULL), iqPostDataQueue(NULL), audioVisualQueue(NULL), t_SDR(NULL),  t_PostSDR(NULL), sampleRate(DEFAULT_SAMPLE_RATE) {
+    m_glContext(NULL), frequency(DEFAULT_FREQ), sdrThread(NULL), sdrPostThread(NULL), threadCmdQueueSDR(NULL), iqVisualQueue(NULL), iqPostDataQueue(NULL), audioVisualQueue(NULL), t_SDR(NULL),  t_PostSDR(NULL), sampleRate(DEFAULT_SAMPLE_RATE), offset(0) {
 
     }
 
diff --git a/src/demod/DemodulatorInstance.cpp b/src/demod/DemodulatorInstance.cpp
index fbad2c1..896b10c 100644
--- a/src/demod/DemodulatorInstance.cpp
+++ b/src/demod/DemodulatorInstance.cpp
@@ -292,7 +292,6 @@ void DemodulatorInstance::setFrequency(long long freq) {
         command.llong_value = freq;
         threadQueueCommand->push(command);
     }
-    demodulatorPreThread->getParams().bandwidth;
 }
 
 long long DemodulatorInstance::getFrequency() {
diff --git a/src/demod/DemodulatorPreThread.cpp b/src/demod/DemodulatorPreThread.cpp
index b412e0d..f45f78a 100644
--- a/src/demod/DemodulatorPreThread.cpp
+++ b/src/demod/DemodulatorPreThread.cpp
@@ -100,6 +100,8 @@ void DemodulatorPreThread::threadMain() {
                 case DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_FREQUENCY:
                     params.frequency = command.llong_value;
                     break;
+                default:
+                    break;
                 }
             }
         }
@@ -227,6 +229,8 @@ void DemodulatorPreThread::threadMain() {
                     params.bandwidth = result.bandwidth;
                     params.sampleRate = result.sampleRate;
 
+                    break;
+                default:
                     break;
                 }
             }
@@ -243,6 +247,10 @@ void DemodulatorPreThread::threadMain() {
     tCmd.context = this;
     threadQueueNotify->push(tCmd);
     std::cout << "Demodulator preprocessor thread done." << std::endl;
+
+#ifdef __APPLE__
+    return this;
+#endif
 }
 
 void DemodulatorPreThread::terminate() {
diff --git a/src/demod/DemodulatorThread.cpp b/src/demod/DemodulatorThread.cpp
index 8ed1b20..7194109 100644
--- a/src/demod/DemodulatorThread.cpp
+++ b/src/demod/DemodulatorThread.cpp
@@ -410,6 +410,10 @@ void DemodulatorThread::threadMain() {
     tCmd.context = this;
     threadQueueNotify->push(tCmd);
     std::cout << "Demodulator thread done." << std::endl;
+
+#ifdef __APPLE__
+    return this;
+#endif
 }
 
 void DemodulatorThread::setVisualOutputQueue(DemodulatorThreadOutputQueue *tQueue) {
diff --git a/src/demod/DemodulatorWorkerThread.cpp b/src/demod/DemodulatorWorkerThread.cpp
index 302fb14..58bc1de 100644
--- a/src/demod/DemodulatorWorkerThread.cpp
+++ b/src/demod/DemodulatorWorkerThread.cpp
@@ -27,6 +27,8 @@ void DemodulatorWorkerThread::threadMain() {
                 filterChanged = true;
                 filterCommand = command;
                 break;
+            default:
+                break;
             }
             done = commandQueue->empty();
         }
diff --git a/src/visual/MeterCanvas.cpp b/src/visual/MeterCanvas.cpp
index 7e1d42c..0dd0770 100644
--- a/src/visual/MeterCanvas.cpp
+++ b/src/visual/MeterCanvas.cpp
@@ -45,7 +45,7 @@ void MeterCanvas::setMax(float max_in) {
     level_max = max_in;
 }
 
-bool MeterCanvas::setInputValue(float slider_in) {
+void MeterCanvas::setInputValue(float slider_in) {
     userInputValue = inputValue = slider_in;
 }
 
diff --git a/src/visual/MeterCanvas.h b/src/visual/MeterCanvas.h
index e64ef5c..a6968b1 100644
--- a/src/visual/MeterCanvas.h
+++ b/src/visual/MeterCanvas.h
@@ -23,7 +23,7 @@ public:
 
     void setMax(float max_in);
 
-    bool setInputValue(float slider_in);
+    void setInputValue(float slider_in);
     bool inputChanged();
     float getInputValue();
 
diff --git a/src/visual/MeterContext.cpp b/src/visual/MeterContext.cpp
index ec89d92..e1351bf 100644
--- a/src/visual/MeterContext.cpp
+++ b/src/visual/MeterContext.cpp
@@ -4,14 +4,12 @@
 
 MeterContext::MeterContext(MeterCanvas *canvas, wxGLContext *sharedContext) :
         PrimaryGLContext(canvas, sharedContext) {
-    glDisable(GL_CULL_FACE);
-    glDisable(GL_DEPTH_TEST);
-
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
 }
 
 void MeterContext::DrawBegin() {
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_DEPTH_TEST);
+
     glClearColor(ThemeMgr::mgr.currentTheme->generalBackground.r, ThemeMgr::mgr.currentTheme->generalBackground.g, ThemeMgr::mgr.currentTheme->generalBackground.b, 1.0);
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
diff --git a/src/visual/PrimaryGLContext.cpp b/src/visual/PrimaryGLContext.cpp
index 9b2d06e..654b8e7 100644
--- a/src/visual/PrimaryGLContext.cpp
+++ b/src/visual/PrimaryGLContext.cpp
@@ -53,14 +53,14 @@ void PrimaryGLContext::CheckGLError() {
 
 PrimaryGLContext::PrimaryGLContext(wxGLCanvas *canvas, wxGLContext *sharedContext) :
         wxGLContext(canvas, sharedContext) {
-    SetCurrent(*canvas);
-#ifndef __linux__
-    // Pre-load fonts
-    for (int i = 0; i < GLFONT_MAX; i++) {
-        getFont((GLFontSize) i);
-    }
-    CheckGLError();
-#endif
+//#ifndef __linux__
+//    SetCurrent(*canvas);
+//    // Pre-load fonts
+//    for (int i = 0; i < GLFONT_MAX; i++) {
+//        getFont((GLFontSize) i);
+//    }
+//    CheckGLError();
+//#endif
 }
 
 GLFont &PrimaryGLContext::getFont(GLFontSize esize) {
@@ -86,6 +86,9 @@ GLFont &PrimaryGLContext::getFont(GLFontSize esize) {
         case GLFONT_SIZE48:
             fontName = "vera_sans_mono48.fnt";
             break;
+        default:
+            fontName = "vera_sans_mono12.fnt";
+            break;
         }
 
         fonts[esize].loadFont(fontName);