--- kaffeine/src/player-parts/xine-part/kxinewidget.cpp
+++ kaffeine/src/player-parts/xine-part/kxinewidget.cpp
@@ -395,9 +395,10 @@
 		{
 			debugOut("xine event: channels changed");
 			int i,j,channels;
-			char* lang = new char[128];
+			char lang[128];
 			QString num;
 
+			vw->m_mutex.lock();
 			vw->m_audioCh.clear();
 			vw->m_audioCh.append(i18n("auto"));
 			vw->m_subCh.clear();
@@ -424,8 +425,6 @@
 					vw->m_subCh << i18n("Ch ") + num.setNum(j+1);
 			}
 
-			delete [] lang;
-
 			vw->m_currentAudio = xine_get_param(vw->m_xineStream, XINE_PARAM_AUDIO_CHANNEL_LOGICAL) + 1;
 			vw->m_currentSub = xine_get_param(vw->m_xineStream, XINE_PARAM_SPU_CHANNEL) + 1;
 
@@ -444,6 +443,7 @@
 			//check if stream is seekable
 			vw->m_trackIsSeekable = (bool)xine_get_stream_info(vw->m_xineStream, XINE_STREAM_INFO_SEEKABLE);
 
+			vw->m_mutex.unlock();
 			QApplication::postEvent(vw, new QTimerEvent(TIMER_EVENT_NEW_CHANNELS));
 			break;
 		}
@@ -701,7 +701,9 @@
 		}
 		case TIMER_EVENT_NEW_CHANNELS:
 		{
+			m_mutex.lock();
 			emit signalNewChannels(m_audioCh, m_subCh, m_currentAudio, m_currentSub);
+			m_mutex.unlock();
 			break;
 		}
 		case TIMER_EVENT_NEW_TITLE:
--- kaffeine/src/player-parts/xine-part/kxinewidget.h
+++ kaffeine/src/player-parts/xine-part/kxinewidget.h
@@ -47,5 +47,6 @@
 
 #include <qtimer.h>
+#include <qmutex.h>
 #include <qptrlist.h>
 #include <X11/Xlib.h>
 #include <xine.h>
@@ -441,6 +442,7 @@
 	bool m_trackHasAudio;
 	bool m_trackHasChapters;
 	bool m_trackIsSeekable;
+	QMutex m_mutex;
 
 	/*  dvb  */
 signals: