Fixing various issues and re-tuning.

Change-Id: I8822fcf77cfa507788241c5bda98ef4741b284b4
diff --git a/web/gui/src/main/webapp/topo.js b/web/gui/src/main/webapp/topo.js
index eb05dbf..e212f95 100644
--- a/web/gui/src/main/webapp/topo.js
+++ b/web/gui/src/main/webapp/topo.js
@@ -356,6 +356,9 @@
             hideInstances();
         } else if (summaryPane.isVisible()) {
             cancelSummary();
+            stopAntTimer();
+        } else {
+            hoverMode = hoverModeFlows;
         }
     }