diff --git a/nel/samples/misc/i18n/main.cpp b/nel/samples/misc/i18n/main.cpp
index 1c8ddabb9..5456c1325 100644
--- a/nel/samples/misc/i18n/main.cpp
+++ b/nel/samples/misc/i18n/main.cpp
@@ -44,9 +44,9 @@ int main (int argc, char **argv)
 	// load the language
 	CI18N::load(langName);
 
-	InfoLog->displayRawNL(CI18N::get("Hi").toString().c_str());
-	InfoLog->displayRawNL(CI18N::get("PresentI18N").toString().c_str(), "Nevrax");
-	InfoLog->displayRawNL(CI18N::get("ExitStr").toString().c_str());
+	InfoLog->displayRawNL(CI18N::get("Hi").c_str());
+	InfoLog->displayRawNL(CI18N::get("PresentI18N").c_str(), "Nevrax");
+	InfoLog->displayRawNL(CI18N::get("ExitStr").c_str());
 	getchar();
 
 	return EXIT_SUCCESS;
diff --git a/nel/src/misc/unicode.cpp b/nel/src/misc/unicode.cpp
index d28a7c56e..c6780db54 100644
--- a/nel/src/misc/unicode.cpp
+++ b/nel/src/misc/unicode.cpp
@@ -4731,10 +4731,13 @@ NL_FORCE_INLINE void appendToLowerAsUtf8(std::string &res, const char *str, ptrd
 {
 	char c = str[i];
 	char d, e;
-	if (c >= 'A' && c <= 'Z')
+	if (c < 0x80)
 	{
-		// 1-byte UTF-8
-		c += 'a' - 'A';
+		if (c >= 'A' && c <= 'Z')
+		{
+			// 1-byte UTF-8
+			c += 'a' - 'A';
+		}
 	}
 	else if ((c & 0xE0) == 0xC0 && ((d = str[i + 1]) & 0xC0) == 0x80)
 	{
@@ -4803,10 +4806,13 @@ NL_FORCE_INLINE void appendToUpperAsUtf8(std::string &res, const char *str, ptrd
 {
 	char c = str[i];
 	char d, e;
-	if (c >= 'a' && c <= 'z')
+	if (c < 0x80)
 	{
-		// 1-byte UTF-8
-		c -= 'a' - 'A';
+		if (c >= 'a' && c <= 'z')
+		{
+			// 1-byte UTF-8
+			c -= 'a' - 'A';
+		}
 	}
 	else if ((c & 0xE0) == 0xC0 && ((d = str[i + 1]) & 0xC0) == 0x80)
 	{
diff --git a/nel/src/misc/utf_string_view.cpp b/nel/src/misc/utf_string_view.cpp
index 9f4057b66..06dcb5e76 100644
--- a/nel/src/misc/utf_string_view.cpp
+++ b/nel/src/misc/utf_string_view.cpp
@@ -72,7 +72,7 @@ std::string CUtfStringView::toUtf8(bool reEncode) const
 		return std::string((const char *)m_Str, (const char *)((ptrdiff_t)m_Str + m_Size));
 	std::string res;
 	res.reserve(m_Size);
-	for (iterator it(begin()), end(end()); it != end; ++it)
+	for (iterator it(begin()), end(this->end()); it != end; ++it)
 	{
 		appendUtf8(res, *it);
 	}
@@ -85,7 +85,7 @@ ucstring CUtfStringView::toUtf16(bool reEncode) const
 		return ucstring((const ucchar *)m_Str, (const ucchar *)((ptrdiff_t)m_Str + m_Size));
 	ucstring res;
 	res.reserve(m_Size << 1);
-	for (iterator it(begin()), end(end()); it != end; ++it)
+	for (iterator it(begin()), end(this->end()); it != end; ++it)
 	{
 		u32char c = *it;
 		if (c < 0x10000)
@@ -110,7 +110,7 @@ u32string CUtfStringView::toUtf32() const
 		return u32string((const u32char *)m_Str, (const u32char *)((ptrdiff_t)m_Str + m_Size));
 	u32string res;
 	res.reserve(m_Size << 2);
-	for (iterator it(begin()), end(end()); it != end; ++it)
+	for (iterator it(begin()), end(this->end()); it != end; ++it)
 		res += *it;
 	return res;
 }
@@ -119,7 +119,7 @@ std::string CUtfStringView::toAscii() const
 {
 	std::string res;
 	res.reserve(m_Size);
-	for (iterator it(begin()), end(end()); it != end; ++it)
+	for (iterator it(begin()), end(this->end()); it != end; ++it)
 	{
 		u32char c = *it;
 		if (c < 0x80)
@@ -137,7 +137,7 @@ std::wstring CUtfStringView::toWide() const
 		return std::wstring((const wchar_t *)m_Str, (const wchar_t *)((ptrdiff_t)m_Str + m_Size));
 	std::wstring res;
 	res.reserve(m_Size << 1);
-	for (iterator it(begin()), end(end()); it != end; ++it)
+	for (iterator it(begin()), end(this->end()); it != end; ++it)
 	{
 		u32char c = *it;
 		if (c < 0x10000)
@@ -157,7 +157,7 @@ std::wstring CUtfStringView::toWide() const
 		return std::wstring((const wchar_t *)m_Str, (const wchar_t *)((ptrdiff_t)m_Str + m_Size));
 	std::wstring res;
 	res.reserve(m_Size << 2);
-	for (iterator it(begin()), end(end()); it != end; ++it)
+	for (iterator it(begin()), end(this->end()); it != end; ++it)
 		res += *it;
 	return res;
 #endif
@@ -166,7 +166,7 @@ std::wstring CUtfStringView::toWide() const
 size_t CUtfStringView::count() const
 {
 	size_t res = 0;
-	for (iterator it(begin()), end(end()); it != end; ++it)
+	for (iterator it(begin()), end(this->end()); it != end; ++it)
 		++res;
 	return res;
 }
diff --git a/ryzom/client/src/string_manager_client.h b/ryzom/client/src/string_manager_client.h
index 021d9f433..c553f7c57 100644
--- a/ryzom/client/src/string_manager_client.h
+++ b/ryzom/client/src/string_manager_client.h
@@ -60,7 +60,7 @@ public:
 	// Force the cache to be saved
 	void flushStringCache();
 
-	bool getString(uint32 stringId, std::string &result) { ucstring temp; getString(stringId, temp); result = temp.toUtf8(); } // FIXME: UTF-8
+	bool getString(uint32 stringId, std::string &result) { ucstring temp; bool res = getString(stringId, temp); result = temp.toUtf8(); return res; } // FIXME: UTF-8
 	bool getString(uint32 stringId, ucstring &result);
 	void waitString(uint32 stringId, const IStringWaiterRemover *premover, ucstring *result);
 	void waitString(uint32 stringId, IStringWaitCallback *pcallback);