Unable to move topics

[king-cat]

When using your theme plugin on 1.5.3 im unable to use the move topic modal. I click move topic, the modal launches like you'd expect but nothing happens when I click on any of the categories to move it to and the "move" button is always greyed out. It seems like some javascript isn't being fired.

None of the categories im trying to move it to are disabled.

[alejandrocobo]

Same issue over here.