Why can't I type in the To field to email photos from within iPhoto?

Question

I selected some photos then Share > Email. I can type in the Subject and in the body of the email. I can select the To field but when I type nothing shows up in it. Stumped. I'll email by dragging into Mail, but I'd like to know what's up.

Answer 1

Set up iPhoto to use Mail instead of iPhoto for the mail client in the General preference pane:
If you want a template use one of Mail's many stationary templates:
Try the following to get iPhoto to accept text in the To field of iPhoto's mail window:  make a temporary, backup copy (if you don't already have a backup copy) of the library and try the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
     User/Home()/Library/ Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your
     User/Home()/Library/Caches/com.apple.iPhoto folder. 
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3 - launch iPhoto and try again.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding down the Option key when launching iPhoto.  You'll also have to reset the iPhoto's various preferences.
NOTE 2:  In Lion and Mountain Lion the Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and hit the Enter button - 10.7: Un-hide the User Library folder.
OT