diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index ef102165bc..ac93ad4be1 100755
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -1068,9 +1068,9 @@ namespace OpenSim.Region.Framework.Scenes
                 else
                 {
                     string tile = Util.GetConfigVarFromSections<string>(
-                            config, "MaptileStaticUUID", possibleMapConfigSections, UUID.Zero.ToString());
+                            config, "MaptileStaticUUID", possibleMapConfigSections, Util.UUIDZeroString);
 
-                    if (tile != UUID.Zero.ToString() && UUID.TryParse(tile, out UUID tileID))
+                    if (tile != Util.UUIDZeroString && UUID.TryParse(tile, out UUID tileID))
                     {
                         RegionInfo.RegionSettings.TerrainImageID = tileID;
                     }
@@ -1094,11 +1094,10 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
 
-                grant = Util.GetConfigVarFromSections<string>(config, "DeniedClients", possibleAccessControlConfigSections, String.Empty);
+                grant = Util.GetConfigVarFromSections<string>(config, "DeniedClients", possibleAccessControlConfigSections, string.Empty);
                 // Deal with the mess of someone having used a different word at some point
-                if (grant == String.Empty)
-                    grant = Util.GetConfigVarFromSections<string>(
-                            config, "BannedClients", possibleAccessControlConfigSections, String.Empty);
+                if (string.IsNullOrWhiteSpace(grant))
+                    grant = Util.GetConfigVarFromSections<string>(config, "BannedClients", possibleAccessControlConfigSections, string.Empty);
 
                 if (grant.Length > 0)
                 {
diff --git a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
index 7a3b1e26f9..87863e8b1b 100644
--- a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
@@ -1040,7 +1040,7 @@ namespace OpenSim.Region.ScriptEngine.Shared
                 // now, this makes the math easier
                 int remove = end - start;
 
-                if(Data.Length <= remove)
+                if(remove >= Data.Length)
                     return new list(new object[0]);
 
                 ret = new object[Data.Length - remove];
@@ -1048,7 +1048,7 @@ namespace OpenSim.Region.ScriptEngine.Shared
                 if (start > 0)
                     Array.Copy(Data, 0, ret, 0, start);
 
-                if(end > Data.Length - 1)
+                if(end >= Data.Length)
                     return new list(ret);
 
                 Array.Copy(Data, end, ret, start, Data.Length - end);