Dialog buttons not showing

[Mun'ki]

I have a trigger for my map and I can't seem to see what's wrong, can anyone help. i've attached an image of the trigger here.

 

[Thrikodius]

You must add Show Dialog in the end, otherwhise you can't see it. If it still doesn't work then change the Event to Unit Begins Casting an Ability.

 

[Mun'ki]

Yes, I realised the stupidity of my mistake after I posted, but unfortunatley the mother was nagging me o get off the computer.
thanks Anyway