Index: OpenMetaverse/GroupManager.cs
===================================================================
--- OpenMetaverse/GroupManager.cs	(revision 2324)
+++ OpenMetaverse/GroupManager.cs	(working copy)
@@ -767,12 +767,10 @@
         public UUID RequestGroupRoleMembers(UUID group)
         {
             UUID requestID = UUID.Random();
-            lock (GroupRolesMembersCaches)
-            {
-                GroupRolesMembersCaches[requestID] = new List<KeyValuePair<UUID, UUID>>();
-            }
 
+            lock (GroupRolesMembersRequests) GroupRolesMembersRequests.Add(requestID);
             GroupRoleMembersRequestPacket request = new GroupRoleMembersRequestPacket();
+
             request.AgentData.AgentID = Client.Self.AgentID;
             request.AgentData.SessionID = Client.Self.SessionID;
             request.GroupData.GroupID = group;