diff --git a/HISTORY b/HISTORY
index 90b03af..1aea7a8 100644
--- a/HISTORY
+++ b/HISTORY
@@ -29,7 +29,8 @@ VDR Plugin 'femon' Revision History
 
 - Redesigned the user interface.
 - Transponder information is now available in advanced display mode:
-  Press 'OK' key to switch between the simple and the advanced display mode.
+  Press 'OK' key to switch between the simple and the advanced display
+  mode.
 - Moved bitrate calculation to it's own thread for improved accurancy.
 
 2004-03-07: Version 0.0.3a
@@ -41,7 +42,8 @@ VDR Plugin 'femon' Revision History
 2004-03-16: Version 0.0.3b
 
 - Fixed channel toggling with '0' key.
-- Bitrate calculation thread is now canceled immediately to speed up channel switching.
+- Bitrate calculation thread is now canceled immediately to speed up
+  channel switching.
 
 2004-04-04: Version 0.0.3c
 
@@ -88,7 +90,8 @@ VDR Plugin 'femon' Revision History
 
 2004-06-11: Version 0.1.3
 
-- Added "AC-3 Stream Information" display mode (Thanks to Lothar Englisch).
+- Added "AC-3 Stream Information" display mode (Thanks to Lothar
+  Englisch).
 
 2004-06-24: Version 0.1.4
 
@@ -100,7 +103,8 @@ VDR Plugin 'femon' Revision History
 
 - Fixed OSDSTATUSWIN_XC define.
 - Added preliminary NTSC support (make NTSC_SYSTEM=1 plugins).
-- Fixed "Setup/OSD/Use Small Fonts" bug (Thanks to Winni for reporting this one).
+- Fixed "Setup/OSD/Use Small Fonts" bug (Thanks to Winni for reporting
+  this one).
 - Added patches directory: CA system names by Lauri Tischler.
 
 2004-09-11: Version 0.1.6
@@ -146,7 +150,8 @@ VDR Plugin 'femon' Revision History
 2005-04-01: Version 0.8.7
 
 - Default make target is now all.
-- Fixed the access rights of symbols subdirectory (Thanks to Harri Kukkonen).
+- Fixed the access rights of symbols subdirectory (Thanks to Harri
+  Kukkonen).
 - Added a new theme: Moronimo (Thanks to Morone).
 
 2005-04-02: Version 0.8.8
@@ -160,7 +165,8 @@ VDR Plugin 'femon' Revision History
 
 2005-05-20: Version 0.9.0
 
-- Renamed compiling switches ('DEBUG' to 'FEMON_DEBUG' and 'NTSC_SYSTEM' to 'FEMON_NTSC').
+- Renamed compiling switches ('DEBUG' to 'FEMON_DEBUG' and 'NTSC_SYSTEM'
+  to 'FEMON_NTSC').
 - Enabled preliminary support for the device switching.
 
 2005-07-23: Version 0.9.1
@@ -200,7 +206,8 @@ VDR Plugin 'femon' Revision History
 
 - Updated for vdr-1.3.40.
 - Fixed a translation bug (Thanks to Antti Hartikainen).
-- Fixed AC3 header parsing bug (Thanks to Axel Katzur for reporting this one).
+- Fixed AC3 header parsing bug (Thanks to Axel Katzur for reporting this
+  one).
 - Fixed EgalsTry theme (Thanks to Uwe Hanke).
 
 2006-02-06: Version 0.9.7
@@ -248,7 +255,8 @@ VDR Plugin 'femon' Revision History
 
 2007-05-01: Version 1.1.2
 
-- Fixed opening while replaying (Thanks to Antti Seppälä for reporting this one).
+- Fixed opening while replaying (Thanks to Antti Seppälä for reporting
+  this one).
 
 2007-05-15: Version 1.1.3
 
@@ -298,7 +306,7 @@ VDR Plugin 'femon' Revision History
 2008-06-20: Version 1.6.1
 
 - Updated Italian translation (Thanks to Diego Pierotto).
-- Fixed a crash if no channel available (Thanks to Winfried Köhler)
+- Fixed a crash if no channel available (Thanks to Winfried Köhler).
 
 2008-10-12: Version 1.6.2
 
@@ -317,17 +325,33 @@ VDR Plugin 'femon' Revision History
 - Updated Italian translation (Thanks to Diego Pierotto).
 - Fixed a memory leak.
 - Added a check for the minimum OSD height.
-- Replaced "Use single area (8bpp)" option with VDR's "Setup/OSD/Anti-alias".
+- Replaced "Use single area (8bpp)" option with VDR's
+  "Setup/OSD/Anti-alias".
 - Removed the FEMON_NTSC option.
-- Fixed a deadlock in cFemonReceiver (Thanks to Antti Seppälä for reporting this one).
+- Fixed a deadlock in cFemonReceiver (Thanks to Antti Seppälä for
+  reporting this one).
 
 2008-12-16: Version 1.6.5
 
 - Backported from 1.7.0.
 
+2009-01-06: Version 1.6.6
+
+- Backported from 1.7.1.
+
+===================================
+VDR Plugin 'femon' Revision History
+===================================
+
 2008-12-16: Version 1.7.0
 
 - Updated for vdr-1.7.2.
 - Added whitespace cleanups.
-- Changed info window to use the channel source instead of the frontend type.
+- Changed info window to use the channel source instead of the frontend
+  type.
 - Removed the "Show CA system" setup option.
+
+2009-01-06: Version 1.7.1
+
+- Fixed closing of frontend file handles (Thanks to Brendon Higgins for
+  reporting this one).
diff --git a/femon.c b/femon.c
index 0afc665..4d99717 100644
--- a/femon.c
+++ b/femon.c
@@ -18,7 +18,7 @@
 #error "VDR-1.7.0 API version or greater is required!"
 #endif
 
-static const char VERSION[]       = "1.7.0";
+static const char VERSION[]       = "1.7.1";
 static const char DESCRIPTION[]   = trNOOP("DVB Signal Information Monitor (OSD)");
 static const char MAINMENUENTRY[] = trNOOP("Signal Information");
 
diff --git a/femonosd.c b/femonosd.c
index da7f046..3b3855e 100644
--- a/femonosd.c
+++ b/femonosd.c
@@ -121,7 +121,7 @@ cFemonOsd *cFemonOsd::pInstance = NULL;
 cFemonOsd *cFemonOsd::Instance(bool create)
 {
   Dprintf("%s()\n", __PRETTY_FUNCTION__);
-  if (pInstance == NULL && create)
+  if ((pInstance == NULL) && create)
   {
      pInstance = new cFemonOsd();
   }
@@ -179,6 +179,10 @@ cFemonOsd::~cFemonOsd(void)
      }
   if (m_Osd)
      DELETENULL(m_Osd);
+  if (m_Frontend >= 0) {
+     close(m_Frontend);
+     m_Frontend = -1;
+     }
   pInstance = NULL;
 }
 
@@ -844,6 +848,6 @@ eOSState cFemonOsd::ProcessKey(eKeys Key)
             break;
        }
      state = osContinue;
-  }
+     }
   return state;
 }