Movement order and fortifications

[Huntsman]

Chazar said:
No, that is mysterious:

If I own a besieged castle, and set my troops to move via clicking, i can then click on "move" on one of those commanders and have the option "move and patrol" among them. This might be inconvenient, but it is definitely working, for I used this many a time.

Odd. It's not working for me. Here's what I'm doing:

1) I click the commander icon and he turns white (selected).
2) I click the destination province, which happens to have a castle that I own with enemy troops besieging.
3) The "Move" command appears beneath my commander's icon and the move arrow appears.
4) I click the "Move" command to change the orders and the menu appears and it shows "Defend Province, Patrol Province, etc." but it doesn't have any option saying "Move and Patrol".

I'm playing in a window with sound off. Fade effect is off. It's a PBEM on World map. ANd I need to figure this out!

HELP!