Welcome to the Apple Community.
You need to re-sort the photos in iPhoto, I can't remember whether the Apple TV uses the date or the filename to order the photos, whichever it is you'll need to batch process them in iPhoto to the order you want.
You can alter the slide duration in the slideshow settings.
Currently Being ModeratedNov 26, 2012 10:35 AM (in response to Winston Churchill)
This problem only happened when I updated Apple TV to version 5.1 (5210). I think some other folks has same problem after updated to V5.1. and they saying probably is bug or something...also I can't find option in slideshow
setting in this version to alter the slide duration. Pls verify and let me know if it is true or not.
My slides are still in order, I have always had them ordered as explained hereinbefore.
In the thumbnail view when you select a photo album there are two buttons in the top right corner, choose the one that says slideshow. Scroll down and select classic or Ken burns then change the slide duration.
Currently Being ModeratedNov 26, 2012 11:56 AM (in response to Winston Churchill)
Thank you, I can change the slide duration now.
But the main issue still exsist, still have problem with playing iphoto on TV which still not in order as it was set up
on computer. I check with the other albums also has same problem (I also did batch change by date but It doesn't help). I never have this problem before I update to rev 5.1. If you hear anything new about this problem let me know.