MY 998 HAS A BUTTON CUT OFF PROBLEM,I WOULD TRY MASHING HARDER AND TO THE SIDE,NOW I FIND THAT IF I HOLD BUTTON HALF WAY IN THAT IT WORKS BETTER BUT SOMETIMES I HAVE TO DO IT A FEW TIMES TRYING TO GET THAT RIGHT AMOUNT OF PUSHING BUTTON, AGAIN IF I MASH ALL THE WAY IT WILL NOT CUT OFF,