Check out this thread complaining of recent lag problems. The guy had an mmo DLL loaded when he copied his system info. Of course, it's not illegal to have it loaded eh?
http://eqforums.station.sony.com/eq/board/message?board.id=tech&message.id=144790
http://eqforums.station.sony.com/eq/board/message?board.id=tech&message.id=144790