diff -u -r1.3 -r1.4
--- MSTClusterList.java	16 Aug 2005 00:05:40 -0000	1.3
+++ MSTClusterList.java	18 Aug 2005 00:30:58 -0000	1.4
@@ -117,7 +117,9 @@

 	Enumeration iter = list.getClusters();
 	while (iter.hasMoreElements()){
 	    Object obj = (Object) iter.nextElement();

-	    if (obj instanceof AbstractCluster){

+	    if (obj instanceof MSTCluster){
+		this.vList.add((MSTCluster)obj);
+	    } else if (obj instanceof AbstractCluster){

 		MSTCluster mstc = new MSTCluster((AbstractCluster) obj, event);
 		this.vList.add(mstc);
 	    } else {