Slideshow picture orientation problem

Question

I found some very old posts on apparently related problems, but nothing recent. It is June 3, 2012. My AppleTV firmware is current. My iPad (3) OS is up to date. As best I can tell, everything is up to date.
When I play a slideshow on my iPad, it plays perfectly.
When I play the same slideshow using AppleTV, pictures which should be displayed 'vertically' are displayed rotated 90 degrees, i.e., horizontally.
I'm not willing to edit my pictures to correct this. There are simply too many, plus, they display correctly everywhere except in an AppleTV slideshow and in the wonderful windows picture viewer which Microsoft doesn't seem inclined to ever fix. They display correctly using AppleTV 'manually'. The slideshow feature is the only place I see a problem.
So it seems clear to me that there is a software issue associated with running a slideshow using AppleTV. The problem could be in the iPad. The problem could be in the AppleTV. Perhaps, if one really stretches, the problem could be in my wireless network. The only thing that is certain is that there is a problem. Please help!

Answer 1

Create a new test library and import a few of the problem files into it to see if they will display properly. If they do then it's a problem with the current library. If they don't then you'll need to see if it's system wide or limited to your account. To do that log into another account, create a test library and try there. If you don't have a second account it's a good thing to have because it's a great troubleshooting tool. Just create a non-admin test account.
If it works in the second account your primary account is causing it. It could be some other preference file other than iPhoto's that is the culprit. Here's how to determine if that's the case:
Trouble Shooting Preferences in Leopard
1 - Create a folder titled "Preferences A" on the Desktop.
2 - Open the working Preferences folder, HD/Users/your_name/Library/Preferences, and move the contents to the Preferences A folder on the Desktop.
3 - Make a duplicate copy of the Preferences A folder on the Desktop as a precautionary backup.
4 - With the working Preferences folder empty run the application again and determine if the problems is fixed.
5 - If the problem is fixed:
A - open the working Preferences folder (HD/Users/your_name/Library/Preferences).
B - Open the Preferences A folder on the Desktop, select all of the contents and drag them into the working Preferences folder.
C - When the Copy window pops up check the "Apply to All" check box and then click on the Don't Replace button as seen here.
6 - If the problem is NOT fixed, empty the working Preferencess folder and move the contents of the Preferences folder on the desktop back into it.
If the problem persists in both accounts a reinstall of iPhoto may be warranted. If it gets to that point you'll have to delete the current application and all files with "iPhoto" in the file name that reside in the HD/Library/Receipts folder before you install iPhoto from the disk it came on.
OT