I practiced doing the online booking for ADR which I will be making next week for my week in February, and it didn't work. It asked for the number of children, and after I put in the number, a box was supposed to pop up for me to fill in the ages of the children, but the box never popped up and it would not let me proceed without it. I called Disney and they said there was probably just a technical difficulty. Has anyone else had these problems? Is this common? I wonder it I should do the booking on the 27th by telephone instead of online?