I'm feeling stupid, i think i know what you mean. You have a lock up on MTX tour ( i do an MTX). If you don't know how it works, here is the answer:
Put your thumb on the top of the shifter knob;
Using two fingers, put them bjust below the shifter knob ball, there is a king of ring, you have to lift it up.
Now to be sure, if you go straightly into reverse without doing any action of this kind, you removed the lockup.
That lockup device should be on.
Nic.