diff -r 6cdafe219768 src/devices/wifi/minstrel-wifi-manager.cc
--- a/src/devices/wifi/minstrel-wifi-manager.cc	Tue Apr 20 13:41:47 2010 -0700
+++ b/src/devices/wifi/minstrel-wifi-manager.cc	Tue Apr 20 14:07:12 2010 -0700
@@ -486,7 +486,7 @@
 bool 
 MinstrelWifiManager::IsLowLatency (void) const
 {
-  return false;
+  return true;
 }
 uint32_t 
 MinstrelWifiManager::GetNextSample (MinstrelWifiRemoteStation *station)
@@ -782,7 +782,7 @@
             {
               newIndex = (newIndex + 1)%GetNSupported (station);
             }
-          station->m_sampleTable[newIndex][col] = i+1;
+          station->m_sampleTable[newIndex][col] = (i+1)%numSampleRates;
 
         }
     }