Razer Lancehead Tournament Edition Fault

Hi guys, my left click button has recently started to not work intermittently. Some times when i click it wont register and also when i try to highlight stuff it will stop for some reason then register again that its held down. I tested it on another pc and the same thing still happens. Is there a possible fix for this or will it need replacing. I am 1 week out of waranty, lucky me.