diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 32a98b435d..a9a4cda71c 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -1391,10 +1391,11 @@ namespace OpenSim.Region.Framework.Scenes
             int previousFrameTick;
             int maintc;
             int sleepMS;
+            int framestart;
 
             while (!m_shuttingDown && (endFrame == null || Frame < endFrame))
             {
-                maintc = Util.EnvironmentTickCount();
+                framestart = Util.EnvironmentTickCount();
                 ++Frame;
 
 //            m_log.DebugFormat("[SCENE]: Processing frame {0} in {1}", Frame, RegionInfo.RegionName);
@@ -1481,7 +1482,7 @@ namespace OpenSim.Region.Framework.Scenes
                     //    landMS = Util.EnvironmentTickCountSubtract(ldMS);
                     //}
 
-                    frameMS = Util.EnvironmentTickCountSubtract(maintc);
+                    //                    frameMS = Util.EnvironmentTickCountSubtract(maintc);
                     otherMS = tempOnRezMS + eventMS + backupMS + terrainMS + landMS;
 
                     // if (Frame%m_update_avatars == 0)
@@ -1496,7 +1497,7 @@ namespace OpenSim.Region.Framework.Scenes
 
                     // frameMS currently records work frame times, not total frame times (work + any required sleep to
                     // reach min frame time.
-                    StatsReporter.addFrameMS(frameMS);
+                    //                    StatsReporter.addFrameMS(frameMS);
 
                     StatsReporter.addAgentMS(agentMS);
                     StatsReporter.addPhysicsMS(physicsMS + physicsMS2);
@@ -1553,17 +1554,21 @@ namespace OpenSim.Region.Framework.Scenes
 
                 previousFrameTick = m_lastFrameTick;
                 m_lastFrameTick = Util.EnvironmentTickCount();
-                maintc = Util.EnvironmentTickCountSubtract(m_lastFrameTick, maintc);
+                maintc = Util.EnvironmentTickCountSubtract(m_lastFrameTick, framestart);
                 maintc = (int)(MinFrameTime * 1000) - maintc;
 
                 m_firstHeartbeat = false;
 
+
                 sleepMS = Util.EnvironmentTickCount();
+
                 if (maintc > 0)
                     Thread.Sleep(maintc);
 
                 sleepMS = Util.EnvironmentTickCountSubtract(sleepMS);
+                frameMS = Util.EnvironmentTickCountSubtract(framestart);
                 StatsReporter.addSleepMS(sleepMS);
+                StatsReporter.addFrameMS(frameMS);
                 
                 // Optionally warn if a frame takes double the amount of time that it should.
                 if (DebugUpdates
diff --git a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
index e9589b86b8..94f1b151b7 100644
--- a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
+++ b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
@@ -253,24 +253,13 @@ namespace OpenSim.Region.Framework.Scenes
                     physfps = 0;
 
 #endregion
-                
-                //Our time dilation is 0.91 when we're running a full speed,
-                // therefore to make sure we get an appropriate range,
-                // we have to factor in our error.   (0.10f * statsUpdateFactor)
-                // multiplies the fix for the error times the amount of times it'll occur a second
-                // / 10 divides the value by the number of times the sim heartbeat runs (10fps)
-                // Then we divide the whole amount by the amount of seconds pass in between stats updates.
-
-                // 'statsUpdateFactor' is how often stats packets are sent in seconds. Used below to change
-                // values to X-per-second values.
-
                 float factor = 1 / statsUpdateFactor;
                 if (reportedFPS <= 0)
                     reportedFPS = 1;
 
                 float perframe = 1.0f / (float)reportedFPS;
 
-                float TotalFrameTime = 1000.0f * statsUpdateFactor * perframe;
+                float TotalFrameTime = m_frameMS * perframe;
 
                 float targetframetime = 1100.0f / (float)m_nominalReportedFps;
 
@@ -279,7 +268,8 @@ namespace OpenSim.Region.Framework.Scenes
                     sparetime = 0;
                 else
                 {
-                    sparetime = TotalFrameTime - m_frameMS * perframe;
+                    sparetime = m_frameMS - m_physicsMS - m_agentMS;
+                    sparetime *= perframe;
                     if (sparetime < 0)
                         sparetime = 0;
                     else if (sparetime > TotalFrameTime)
@@ -290,7 +280,7 @@ namespace OpenSim.Region.Framework.Scenes
                 //                m_otherMS = m_frameMS - m_physicsMS - m_imageMS - m_netMS - m_agentMS;
                 // m_imageMS  m_netMS are not included in m_frameMS
 
-                m_otherMS = m_frameMS - m_physicsMS -  m_agentMS;
+                m_otherMS = m_frameMS - m_physicsMS -  m_agentMS - m_sleeptimeMS;
                 if (m_otherMS < 0)
                     m_otherMS = 0;