IVE GOT A PEUGEOT 406 1998 AUTOMATIC 2 LITRE... BUT THE GEARS KEEP STICKING IN ONE PARTICULAR GEAR... IT CAN BE ANY GEAR,AND ONCE IT STICKS, YOU HAVE TO SWITCH THE ENGINE OFF TO GET THE SYSTEM WORKING PROPERLY AGAIN. HAS ANYONE HAD THIS PROBLEM BEFORE? DO YOU KNOW WHAT CAUSES IT?! ANY INFO WOULD BE MUCH APPRECIATED THANKS :-) MARTIN