diff --git a/HISTORY b/HISTORY
index b0e05311..176ed0f7 100644
--- a/HISTORY
+++ b/HISTORY
@@ -6075,7 +6075,7 @@ Video Disk Recorder Revision History
 - cFrameDetector::Analyze() now syncs on the TS packet sync bytes (thanks to
   Oliver Endriss for reporting broken index generation after a buffer overflow).
 
-2009-06-01: Version 1.7.8
+2009-06-13: Version 1.7.8
 
 - The name of the function cDevice::GetVideoSize() wasn't very well chosen
   for its purpose of defining the optimum size of the OSD for the current
@@ -6131,3 +6131,6 @@ Video Disk Recorder Revision History
   Ludwig Nussel).
 - Fixed calculating menu colum widths in case the font has a size other than the
   default size (reported by Reinhard Nissl).
+- Added a plausibility check for the OSD percentage parameters
+  to avoid problems in case the values are stored in the setup.conf
+  file in a  wrong way.
diff --git a/config.c b/config.c
index fe083ea9..df82baaa 100644
--- a/config.c
+++ b/config.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: config.c 2.4 2009/05/21 11:10:38 kls Exp $
+ * $Id: config.c 2.5 2009/06/13 10:25:05 kls Exp $
  */
 
 #include "config.h"
@@ -20,6 +20,8 @@
 // format characters in order to allow any number of blanks after a numeric
 // value!
 
+#define ChkDoublePlausibility(Variable, Default) { if (Variable < 0.00001) Variable = Default; }
+
 // --- cCommand --------------------------------------------------------------
 
 char *cCommand::result = NULL;
@@ -452,8 +454,8 @@ bool cSetup::Parse(const char *Name, const char *Value)
   else if (!strcasecmp(Name, "ChannelInfoTime"))     ChannelInfoTime    = atoi(Value);
   else if (!strcasecmp(Name, "OSDLeftP"))            OSDLeftP           = atof(Value);
   else if (!strcasecmp(Name, "OSDTopP"))             OSDTopP            = atof(Value);
-  else if (!strcasecmp(Name, "OSDWidthP"))           OSDWidthP          = atof(Value);
-  else if (!strcasecmp(Name, "OSDHeightP"))          OSDHeightP         = atof(Value);
+  else if (!strcasecmp(Name, "OSDWidthP"))         { OSDWidthP          = atof(Value); ChkDoublePlausibility(OSDWidthP, 0.87); }
+  else if (!strcasecmp(Name, "OSDHeightP"))        { OSDHeightP         = atof(Value); ChkDoublePlausibility(OSDHeightP, 0.84); }
   else if (!strcasecmp(Name, "OSDLeft"))             OSDLeft            = atoi(Value);
   else if (!strcasecmp(Name, "OSDTop"))              OSDTop             = atoi(Value);
   else if (!strcasecmp(Name, "OSDWidth"))          { OSDWidth           = atoi(Value); OSDWidth &= ~0x07; } // OSD width must be a multiple of 8
@@ -465,9 +467,9 @@ bool cSetup::Parse(const char *Name, const char *Value)
   else if (!strcasecmp(Name, "FontOsd"))             Utf8Strn0Cpy(FontOsd, Value, MAXFONTNAME);
   else if (!strcasecmp(Name, "FontSml"))             Utf8Strn0Cpy(FontSml, Value, MAXFONTNAME);
   else if (!strcasecmp(Name, "FontFix"))             Utf8Strn0Cpy(FontFix, Value, MAXFONTNAME);
-  else if (!strcasecmp(Name, "FontOsdSizeP"))        FontOsdSizeP       = atof(Value);
-  else if (!strcasecmp(Name, "FontSmlSizeP"))        FontSmlSizeP       = atof(Value);
-  else if (!strcasecmp(Name, "FontFixSizeP"))        FontFixSizeP       = atof(Value);
+  else if (!strcasecmp(Name, "FontOsdSizeP"))      { FontOsdSizeP       = atof(Value); ChkDoublePlausibility(FontOsdSizeP, 0.038); }
+  else if (!strcasecmp(Name, "FontSmlSizeP"))      { FontSmlSizeP       = atof(Value); ChkDoublePlausibility(FontSmlSizeP, 0.035); }
+  else if (!strcasecmp(Name, "FontFixSizeP"))      { FontFixSizeP       = atof(Value); ChkDoublePlausibility(FontFixSizeP, 0.031); }
   else if (!strcasecmp(Name, "FontOsdSize"))         FontOsdSize        = atoi(Value);
   else if (!strcasecmp(Name, "FontSmlSize"))         FontSmlSize        = atoi(Value);
   else if (!strcasecmp(Name, "FontFixSize"))         FontFixSize        = atoi(Value);