--- trunk/src/io/DumpReader.cpp	2007/01/03 04:40:50	1111
+++ trunk/src/io/DumpReader.cpp	2007/01/03 20:47:00	1112
@@ -246,8 +246,14 @@ namespace oopse { 
       Vector3d com;
       Vector3d comvel;
       Vector3d comw;
-      info_->getComAll(com, comvel);
-      comw = info_->getAngularMomentum();
+      if (needPos_ && needVel_){
+	info_->getComAll(com, comvel);
+	comw = info_->getAngularMomentum();
+      }else{
+	com = info_->getCom();
+	comvel = 0.0;
+	comw   = 0.0;
+      }
       s->setCOMprops(com, comvel, comw);      
     }