diff --git a/inc/graph.h b/inc/graph.h
index ca7973c..9a04670 100644
--- a/inc/graph.h
+++ b/inc/graph.h
@@ -389,8 +389,8 @@ public:
       m_highestDamage[team] = value;
    }
 
-   const char *getAuthor () const {
-      return m_tempStrings.chars ();
+   StringRef getAuthor () const {
+      return m_tempStrings;
    }
 
    bool hasChanged () const {
diff --git a/meson.build b/meson.build
index fcb2068..d5bea2b 100644
--- a/meson.build
+++ b/meson.build
@@ -86,7 +86,7 @@ if isCLang or isGCC or (isIntel and not isWindows)
     ]
     
     if isOptimize
-        flagsCompiler += '-msse3'
+        flagsCompiler += '-msse2'
         
         if (isCLang or isGCC) and not isDarwin
             flagsCompiler += '-flto'
@@ -138,7 +138,7 @@ if isLinux or isDarwin
     else
         flagsCompiler += [
             '-mtune=generic',
-            '-msse3',
+            '-msse2',
             '-mfpmath=sse',
             '-fno-builtin',
             '-funroll-loops',
diff --git a/src/graph.cpp b/src/graph.cpp
index 1c5681e..14d2a86 100644
--- a/src/graph.cpp
+++ b/src/graph.cpp
@@ -1783,10 +1783,10 @@ bool BotGraph::loadGraphData () {
       }
 
       if ((outOptions & StorageOption::Official) || strncmp (exten.author, "official", 8) == 0 || strlen (exten.author) < 2) {
-         m_tempStrings.assign ("Using Official Navigation Graph");
+         m_tempStrings.assign (product.folder);
       }
       else {
-         m_tempStrings.assignf ("Navigation Graph Authored By: %s", exten.author);
+         m_tempStrings.assign (exten.author);
       }
       initNodesTypes ();
       loadPathMatrix ();
@@ -2853,6 +2853,7 @@ BotGraph::BotGraph () {
    m_needsVisRebuild = false;
    m_jumpLearnNode = false;
    m_hasChanged = false;
+   m_narrowChecked = false;
    m_timeJumpStarted = 0.0f;
 
    m_lastJumpNode = kInvalidNodeIndex;
diff --git a/src/support.cpp b/src/support.cpp
index 4a7576e..bd87a87 100644
--- a/src/support.cpp
+++ b/src/support.cpp
@@ -281,6 +281,12 @@ void BotSupport::checkWelcome () {
       if (!game.is (GameFlags::Mobility | GameFlags::Xash3D)) {
          game.serverCommand ("speak \"%s\"", m_sentences.random ());
       }
+      String authorStr = "Official Navigation Graph";
+      StringRef graphAuthor = graph.getAuthor ();
+
+      if (!graphAuthor.startsWith (product.folder)) {
+         authorStr.assignf ("Navigation Graph by: %s", graphAuthor);
+      }
 
       MessageWriter (MSG_ONE, msgs.id (NetMsg::TextMsg), nullptr, receiveEntity)
          .writeByte (HUD_PRINTTALK)
@@ -304,7 +310,7 @@ void BotSupport::checkWelcome () {
          .writeShort (MessageWriter::fu16 (2.0f, 8.0f))
          .writeShort (MessageWriter::fu16 (6.0f, 8.0f))
          .writeShort (MessageWriter::fu16 (0.1f, 8.0f))
-         .writeString (strings.format ("\nHello! You are playing with %s v%s (Revision: %s)\nDevised by %s\n\n%s", product.name, product.version, product.build.count, product.author, graph.getAuthor ()));
+         .writeString (strings.format ("\nHello! You are playing with %s v%s (Revision: %s)\nDevised by %s\n\n%s", product.name, product.version, product.build.count, product.author, authorStr));
 
       m_welcomeReceiveTime = 0.0f;
       m_needToSendWelcome = false;