Hi everyone. My original post has generated a lot of comments and it is obvious that there are a lot of lg customers out there who have experienced this pop-up message problem. So as I don't use the wifi facility but have the tv hard wired to all other sources (router, wii, etc) I simply disconnected the wifi via the settings menu and have had no problems since. BUT lg have lost my confidence in ignoring this problem and as a result, any future custom from me.