Sorry - my mistake. It doesn't become active until you confirm selection from the drop down box.
It is a bit odd that you have to select yes or no when you've already clicked to have gift wrap. I suppose the option is there so if you buy several products you can choose which you need gift wrap for.
Yes I thought that would probably be the case as I imagine that may cause every product to have gift wrap.
No matter though as I think I’ll change the layout so the drop down selection is first and so more obvious. I may need your help with the css later but I’ll give it a go first.