I made a test map that worked, but now in my real map, it's not working. A couple of ideas I thought it could be, an order trigger on the carrier or a vision on/off thing, but I don't have anything like that firing.
Any ideas guys?
None.
solved now, i was doing an immobilize for all units. Set it to immobilize all units BUT the defilier and it works perfectly. Cheers 
RIVE -- Lots of fun little nods to different works of others in the cheats too.
Oh_Man -- so i was today years old wen i learned rebel yell starcraft mission is named after a billy idol song. makes me wonder wat other missions are named after songs
IskatuMesk -- no Hello World? No Hello . jpeg? Not even ddosing some government website? smh my head
Ultraviolet -- hell yeah. did you have trouble making the button functional, or just haven't gotten there yet?
Ultraviolet