diff --git a/.travis.yml b/.travis.yml
index 24c6df1c9..337591273 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ matrix:
         - env: TARGET_OS=win64
         - os: osx
 before_install:
-    - sh ${TRAVIS_BUILD_DIR}/.travis/${TRAVIS_OS_NAME}.${TARGET_OS}.before_install.sh
+   - sh ${TRAVIS_BUILD_DIR}/.travis/${TRAVIS_OS_NAME}.${TARGET_OS}.before_install.sh
 install:
     - sh ${TRAVIS_BUILD_DIR}/.travis/${TRAVIS_OS_NAME}.${TARGET_OS}.install.sh
 before_script:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1ba886503..f801852f5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ INCLUDE(FindPkgConfig)
 
 SET(VERSION_MAJOR "1")
 SET(VERSION_MINOR "1")
-SET(VERSION_PATCH "0")
+SET(VERSION_PATCH "3")
 #SET(VERSION_SUFFIX "")
 SET(VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
 IF(VERSION_SUFFIX)
diff --git a/plugins/sfxr/sfxr.cpp b/plugins/sfxr/sfxr.cpp
index 056cc3cc0..6d9b8a451 100644
--- a/plugins/sfxr/sfxr.cpp
+++ b/plugins/sfxr/sfxr.cpp
@@ -133,9 +133,10 @@ void SfxrSynth::resetSample( bool restart )
 		env_vol=0.0f;
 		env_stage=0;
 		env_time=0;
-		env_length[0]=(int)(s->m_attModel.value()*s->m_attModel.value()*100000.0f);
-		env_length[1]=(int)(s->m_holdModel.value()*s->m_holdModel.value()*100000.0f);
-		env_length[2]=(int)(s->m_decModel.value()*s->m_decModel.value()*100000.0f);
+
+		env_length[0]=(int)(s->m_attModel.value()*s->m_attModel.value()*99999.0f)+1;
+		env_length[1]=(int)(s->m_holdModel.value()*s->m_holdModel.value()*99999.0f)+1;
+		env_length[2]=(int)(s->m_decModel.value()*s->m_decModel.value()*99999.0f)+1;
 
 		fphase=pow(s->m_phaserOffsetModel.value(), 2.0f)*1020.0f;
 		if(s->m_phaserOffsetModel.value()<0.0f) fphase=-fphase;
diff --git a/plugins/stk/mallets/mallets.cpp b/plugins/stk/mallets/mallets.cpp
index 70d93d068..f3befe8da 100644
--- a/plugins/stk/mallets/mallets.cpp
+++ b/plugins/stk/mallets/mallets.cpp
@@ -335,6 +335,16 @@ malletsInstrumentView::malletsInstrumentView( malletsInstrument * _instrument,
 	m_spreadKnob->setLabel( tr( "Spread" ) );
 	m_spreadKnob->move( 190, 140 );
 	m_spreadKnob->setHintText( tr( "Spread:" ), "" );
+
+	// try to inform user about missing Stk-installation
+	if( _instrument->m_filesMissing && engine::hasGUI() )
+	{
+		QMessageBox::information( 0, tr( "Missing files" ),
+				tr( "Your Stk-installation seems to be "
+					"incomplete. Please make sure "
+					"the full Stk-package is installed!" ),
+				QMessageBox::Ok );
+	}
 }
 
 
diff --git a/plugins/vst_base/CMakeLists.txt b/plugins/vst_base/CMakeLists.txt
index 8f29acc7a..94604eccc 100644
--- a/plugins/vst_base/CMakeLists.txt
+++ b/plugins/vst_base/CMakeLists.txt
@@ -5,13 +5,15 @@ INCLUDE(BuildPlugin)
 IF(LMMS_BUILD_WIN32)
 	ADD_DEFINITIONS(-DPTW32_STATIC_LIB)
 	ADD_EXECUTABLE(RemoteVstPlugin "${CMAKE_CURRENT_SOURCE_DIR}/RemoteVstPlugin.cpp")
+
 	IF(QT5)
 		TARGET_LINK_LIBRARIES(RemoteVstPlugin Qt5::Core)
 	ELSE()
 		TARGET_LINK_LIBRARIES(RemoteVstPlugin -lQtCore4)
 	ENDIF()
 	TARGET_LINK_LIBRARIES(RemoteVstPlugin -lpthread -lgdi32 -lws2_32)
-	SET_TARGET_PROPERTIES(RemoteVstPlugin PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -O3")
+	SET_TARGET_PROPERTIES(RemoteVstPlugin PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -O0")
+
 	ADD_CUSTOM_COMMAND(TARGET RemoteVstPlugin POST_BUILD COMMAND "${STRIP}" "${CMAKE_CURRENT_BINARY_DIR}/RemoteVstPlugin.exe")
 	INSTALL(TARGETS RemoteVstPlugin RUNTIME DESTINATION "${PLUGIN_DIR}")
 
diff --git a/plugins/vst_base/Win64/CMakeLists.txt b/plugins/vst_base/Win64/CMakeLists.txt
index b16d50292..814c86667 100644
--- a/plugins/vst_base/Win64/CMakeLists.txt
+++ b/plugins/vst_base/Win64/CMakeLists.txt
@@ -5,7 +5,7 @@ ADD_EXECUTABLE(RemoteVstPlugin32 "${CMAKE_CURRENT_SOURCE_DIR}/../RemoteVstPlugin
 TARGET_LINK_LIBRARIES(RemoteVstPlugin32 -lQtCore4 -lpthread -lgdi32 -lws2_32)
 
 ADD_CUSTOM_COMMAND(TARGET RemoteVstPlugin32 POST_BUILD COMMAND "${STRIP}" "\"${CMAKE_CURRENT_BINARY_DIR}/RemoteVstPlugin32.exe\"")
-SET_TARGET_PROPERTIES(RemoteVstPlugin32 PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -O3")
+SET_TARGET_PROPERTIES(RemoteVstPlugin32 PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -O0")
 
 INSTALL(TARGETS RemoteVstPlugin32 RUNTIME DESTINATION "${PLUGIN_DIR}/32")
 INSTALL(FILES "${MINGW_PREFIX32}/bin/QtCore4.dll" "${MINGW_PREFIX32}/bin/zlib1.dll" "${MINGW_PREFIX32}/${CMAKE_SYSTEM_PROCESSOR32}-w64-mingw32/bin/libwinpthread-1.dll"
diff --git a/src/core/FxMixer.cpp b/src/core/FxMixer.cpp
index 6b4707ae2..083a84b9f 100644
--- a/src/core/FxMixer.cpp
+++ b/src/core/FxMixer.cpp
@@ -98,8 +98,8 @@ inline void FxChannel::processed()
 
 void FxChannel::incrementDeps()
 {
-	m_dependenciesMet.ref();
-	if( m_dependenciesMet >= m_receives.size() && ! m_queued )
+	int i = m_dependenciesMet.fetchAndAddOrdered( 1 ) + 1;
+	if( i >= m_receives.size() && ! m_queued )
 	{
 		m_queued = true;
 		MixerWorkerThread::addJob( this );