Print to pdf -- add to iPhotos has suddenly failed - with no error message

Question

It appears to work, the workflow at the left of the finder appears as usual, and iphoto opens, but nothing is imported.
It doesn't work from address book or from Preview. (I have always used address book in the past). I don't know when it stopped working, as I don't do it very often.
It still works on laptop (new, but running same OS).

Answer 1

MaryArthur:
Welcome to the Apple Discussions. Another user just reported the same problem. First delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your User/Library/Preferences folder and try again. Also download and reapply the Mac OS X 10.5.2 Combo Update.
Next open your text editor, type a few lines and run the workflow from there. Be sure you can see the workflow window that comes up asking you to name a new album for the files or select an existing one. It doesn't always come to the front of the other windows, only iPhoto's window. So while the workflow is running hide all the windows but iPhoto's.
If the above doesn't work, log into another account on your Mac and try from there. If you don't have another account it's a good thing to have as it's an excellent troubleshooting tool. Create a non-administrative account with no 3rd party enhancements. If the workflow works there your primary account is causing the problem. It might be another preference file other than iPhoto's. You can determine if that's the problem by the following:
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.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto (iPhoto.Library for iPhoto 5 and earlier) database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. It's compatible with iPhoto 6 and 7 libraries and Tiger and Leopard. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.