diff --git a/demo/digesttreescene.cpp b/demo/digesttreescene.cpp
index 35df071..4bf699e 100644
--- a/demo/digesttreescene.cpp
+++ b/demo/digesttreescene.cpp
@@ -25,13 +25,18 @@
   for (int i = 0; i < n; i++) 
   {
     Roster_iterator it = m_roster.find(v[i].prefix.c_str());
-    if (it == m_roster.end()) {
+    if (it == m_roster.end()) 
+    {
       rePlot = true; 
       DisplayUserPtr p(new DisplayUser());
       p->setPrefix(v[i].prefix.c_str());
       p->setSeq(v[i].high);
       m_roster.insert(p->getPrefix(), p);
     }
+    else 
+    {
+      it.value()->setSeq(v[i].high);
+    }
   }
 
   if (rePlot) 
@@ -77,7 +82,7 @@
 
     reDrawNode(p, Qt::red);
 
-    if (previouslyUpdatedUser != DisplayUserNullPtr) 
+    if (previouslyUpdatedUser != DisplayUserNullPtr && previouslyUpdatedUser != p) 
     {
       reDrawNode(previouslyUpdatedUser, Qt::darkBlue);
     }