diff --git a/RetroFE/Source/Graphics/PageBuilder.cpp b/RetroFE/Source/Graphics/PageBuilder.cpp
index 51ed7d0..ee81aba 100644
--- a/RetroFE/Source/Graphics/PageBuilder.cpp
+++ b/RetroFE/Source/Graphics/PageBuilder.cpp
@@ -97,7 +97,7 @@ Page *PageBuilder::buildPage( std::string collectionName )
         layoutPath = Utils::combinePath(layoutPath, "layout");
     }
     layoutFile       = Utils::combinePath(layoutPath, layoutPage + ".xml");
-    layoutFileAspect = Utils::combinePath(layoutPath, layoutPage + " " + std::to_string( screenWidth_/std::__gcd( screenWidth_, screenHeight_ ) ) + "x" + std::to_string( screenHeight_/std::__gcd( screenWidth_, screenHeight_ ) ) + ".xml" );
+    layoutFileAspect = Utils::combinePath(layoutPath, layoutPage + " " + std::to_string( screenWidth_/Utils::gcd( screenWidth_, screenHeight_ ) ) + "x" + std::to_string( screenHeight_/Utils::gcd( screenWidth_, screenHeight_ ) ) + ".xml" );
 
     Logger::write(Logger::ZONE_INFO, "Layout", "Initializing " + layoutFileAspect);
 
diff --git a/RetroFE/Source/Utility/Utils.cpp b/RetroFE/Source/Utility/Utils.cpp
index 19978bf..6c59af6 100644
--- a/RetroFE/Source/Utility/Utils.cpp
+++ b/RetroFE/Source/Utility/Utils.cpp
@@ -266,3 +266,11 @@ void Utils::listToVector( std::string str, std::vector<std::string> &vec, char d
     }
     vec.push_back( Utils::trimEnds( str.substr( previous, current - previous ) ) );
 }
+
+
+int Utils::gcd( int a, int b )
+{
+    if (b == 0)
+        return a;
+    return gcd( b, a % b );
+}
diff --git a/RetroFE/Source/Utility/Utils.h b/RetroFE/Source/Utility/Utils.h
index 7a41b74..df7b654 100644
--- a/RetroFE/Source/Utility/Utils.h
+++ b/RetroFE/Source/Utility/Utils.h
@@ -36,6 +36,7 @@ public:
     static std::string filterComments(std::string line);
     static std::string trimEnds(std::string str);
     static void listToVector( std::string str, std::vector<std::string> &vec, char delimiter );
+    static int gcd( int a, int b );
 
     //todo: there has to be a better way to do this
     static std::string combinePath(std::list<std::string> &paths);
diff --git a/RetroFE/Source/Version.cpp b/RetroFE/Source/Version.cpp
index 8df1e93..d51b3d7 100644
--- a/RetroFE/Source/Version.cpp
+++ b/RetroFE/Source/Version.cpp
@@ -21,7 +21,7 @@
 
 std::string retrofe_version_major = "0";
 std::string retrofe_version_minor = "9";
-std::string retrofe_version_build = "18";
+std::string retrofe_version_build = "19";
 
 
 std::string Version::getString( )