Tractors

I have a Poulan PRO # pb30 ride on rear engine 11.5 hp mower purchased from Lowes 6/2011. Since last year have had a problem when I engage the mower deck the forward drive starts and stops and will not go forward again until I disengage the mower deck and start over again then starts and stops. The friction discs do not show any wear. When the mower deck is disengaged the forward and reverse drive work fine.