--- a/imgtools/imglib/host/h_utl.cpp	Tue Nov 30 14:05:41 2010 +0800
+++ b/imgtools/imglib/host/h_utl.cpp	Tue Nov 30 17:14:57 2010 +0800
@@ -75,6 +75,7 @@
 
 void HPrint::SetLogFile(const char* aFileName)
 	{
+	iLogFile.clear();
 	iLogFile.open(aFileName);
 	}