My game keeps going back to the first frame

and I have no idea why!

I have narrowed it down to something to do with the houseAppear() function, if I have 3 runing at once, it does it. sometimes very quickly, sometimes not.

I can’t see any code that forces it the first frame, so is there any other way it is doing this? (well there must be lol)

I have attatched the .swf and .fla, if anyone could have a butchers, It’d be very much appreciated!

http://munkydesigns.co.uk/game.swf
http://munkydesigns.co.uk/game.fla