diff --git a/audio/opengroundcontrol b/audio/opengroundcontrol
deleted file mode 100755
index 99d22a0..0000000
Binary files a/audio/opengroundcontrol and /dev/null differ
diff --git a/mavground.pri b/mavground.pri
index 885a72b..20eb81f 100644
--- a/mavground.pri
+++ b/mavground.pri
@@ -2,7 +2,7 @@
 #
 # MAVGround - Micro Air Vehicle Groundstation
 # 
-# Please see our website at <http://pixhawk.ethz.ch>
+# Please see our website at <http://qgroundcontrol.org>
 #
 # Original Author:
 # Lorenz Meier <mavteam@student.ethz.ch>
@@ -37,8 +37,6 @@ LANGUAGE = C++
 #CONFIG += static debug
 #CONFIG += static release console
 CONFIG += static debug_and_release console
-#QMAKE_CFLAGS += -j8
-#QMAKE_CXXFLAGS += -j8
 
 OBJECTS_DIR = $$BUILDDIR/obj
 MOC_DIR = $$BUILDDIR/moc
@@ -60,14 +58,16 @@ message(Qt version $$[QT_VERSION])
 # MAC OS X
 macx { 
 
-	message(Building for Mac OS X)
-	config -= static
-
-    HARDWARE_PLATFORM = $$system(g++ -dumpspecs)
-    contains( HARDWARE_PLATFORM, m64 ) {
-        message(Building as 64-bit)
-        CONFIG += x86_64
-        CONFIG -= x86
+    HARDWARE_PLATFORM = $$system(uname -a)
+    contains( HARDWARE_PLATFORM, x86_64 ) {
+        # x64 Mac OS X Snow Leopard 10.6 and later
+        CONFIG += x86_64 cocoa
+        CONFIG -= x86 static phonon
+        message(Building for Mac OS X 64bit/Snow Leopard 10.6 and later)
+    } else {
+        # x86 Mac OS X Leopard 10.5 and earlier
+        CONFIG += x86 cocoa static phonon
+        message(Building for Mac OS X 32bit/Leopard 10.5 and earlier)
     }
 
     QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.5
@@ -84,8 +84,8 @@ macx {
 
     # Enable function-profiling with the OS X saturn tool
     debug {
-        #QMAKE_CXXFLAGS += -finstrument-functions
-        #LIBS += -lSaturn
+        QMAKE_CXXFLAGS += -finstrument-functions
+        LIBS += -lSaturn
     }
     
     ICON = $$BASEDIR/images/icons/macx.icns
@@ -101,9 +101,9 @@ linux-g++ {
     release {
         DESTDIR = $$BASEDIR
     }
-    INCLUDEPATH += /usr/include/SDL
+    INCLUDEPATH += /usr/include
 
-    HARDWARE_PLATFORM = $$system(uname -p)
+    HARDWARE_PLATFORM = $$system(uname -a)
     contains( HARDWARE_PLATFORM, x86_64 ) {
         # 64-bit Linux
         LIBS += \
@@ -137,7 +137,7 @@ win32 {
     LIBS += -L$$BASEDIR\lib\sdl\win32 \
         -lmingw32 -lSDLmain -lSDL -mwindows
     
-    INCLUDEPATH += $$BASEDIR/lib/sdl/include/SDL
+    INCLUDEPATH += $$BASEDIR/lib/sdl/include
 
     debug {
         DESTDIR = $$BASEDIR/bin
@@ -150,3 +150,4 @@ win32 {
 }
 
 
+
diff --git a/src/Core.cc b/src/Core.cc
index c078b24..7ffa5c8 100644
--- a/src/Core.cc
+++ b/src/Core.cc
@@ -58,7 +58,7 @@ This file is part of the PIXHAWK project
 
 Core::Core(int &argc, char* argv[]) : QApplication(argc, argv)
 {
-    this->setApplicationName("OpenMAV Ground Control Station");
+    this->setApplicationName("QGroundControl");
     this->setApplicationVersion("v. 0.0.5");
     this->setOrganizationName(QLatin1String("OpenMAV Association"));
     this->setOrganizationDomain("http://qgroundcontrol.org");
@@ -89,9 +89,6 @@ Core::Core(int &argc, char* argv[]) : QApplication(argc, argv)
     splashScreen->showMessage(tr("Starting UAS Manager"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));
     startUASManager();
 
-    // Start audio output
-    //GAudioOutput::instance()->say("Ground Control Station started", 1);
-
     //tarsus = new ViconTarsusProtocol();
     //tarsus->start();
 
diff --git a/src/GAudioOutput.cc b/src/GAudioOutput.cc
index a2059e8..cac132a 100644
--- a/src/GAudioOutput.cc
+++ b/src/GAudioOutput.cc
@@ -193,7 +193,9 @@ bool GAudioOutput::startEmergency()
     if (!emergency)
     {
         emergency = true;
-        emergencyTimer->start(1600);
+        // Beep immediately and then start timer
+        beep();
+        emergencyTimer->start(1500);
     }
     return true;
 }
@@ -216,7 +218,9 @@ bool GAudioOutput::stopEmergency()
 
 void GAudioOutput::beep()
 {
-    m_media->setCurrentSource(Phonon::MediaSource(QString("alert.wav").toStdString().c_str()));
+    // Use QFile to transform path for all OS
+    QFile f(MG::DIR::getSupportFilesDirectory()+QString("/audio/alert.wav"));
+    m_media->setCurrentSource(Phonon::MediaSource(f.fileName().toStdString().c_str()));
     m_media->play();
 }