- set data to null to force garbage collection. Someone reported that the chat messages causes

overflow exception crashing flash in certain environment. Setting data to null prevents this
   from happening.

bigbluebutton-client/src/org/bigbluebutton/modules/chat/views/ChatMessageRenderer.mxml

@@ -47,6 +47,7 @@
 				ChangeWatcher.watch(this, "data", dataChangeHandler);
 				if (data != null) {
 					chatMsg = data as ChatMessage;
+					data = null;
 					chatMsg.translateMessage();					
 				}
 				
@@ -64,6 +65,7 @@
 					return;
 				}				
 				chatMsg = data as ChatMessage;
+				data = null;
 				chatMsg.translateMessage();	
 			}