Hi Veterans, Have a friend that just received an iStick TC40W and Nautilus tank and says he has the following problem:- "Strangely I can’t seem to get the iStick to work. The LCD keeps flashing ‘0 resistance, 40W, 370 deg F’. The device won’t turn on: I have tried pressing the FIRE button 5 times as per the manual. The battery is fully charged." To me it seems it's obviously on because he's getting a display. Any ideas for this naive user of anything other than gen 1 or early gen 2?