Streaming Iphoto slideshow from IPad II to Apple TV 2

Hello all,

my englsh is not very well, but I'm try to explain my problem.

I installed the app IPhoto on my IPad II. It works very well, In IPhoto I activate tv-synchronisation to get my IPad screen via apple tv 2 on my tv, but no screnn or picture is seen. In a diashow I heared the music. I also does'nt see the airplay button or sign. Thats all. So I need a liitle bit of help or is it my configuration.

By the way: in other apps on my Ipad like photo, music, video and so on airplay works very good. It`s the same netowrk an so on.

Thanks

appler00