Photo Stream turns off with restart

Question

Ever since I turned on Photo Stream, I've had this problem where every time I restart my computer, Photo Stream turns off in iPhoto.  If I quit iPhoto and re-open it without restarting my computer, Photo Stream keeps running just fine.  I only have the issue when I actually shut my computer off.  I'm running iPhoto 9.3 and OSX 10.7.4.
I've been doing some research to try and find a solution, and I keep coming up with two tips.  The first is to go into Library-->Application Support and delete the iLifeAssetManagement folder.  The second is to to into Library-->Preferences and delete the com.apple.iLifePhotoStream files.  I've tried both, and so far neither has solved the problem.
Does anyone have any other suggestions about how I could fix this issue?

Answer 1

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, reset the preferences including PhotoStream 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.
OT