At work we have a Mac Book Pro running iphoto 6.0.5. The person that is using this has many pictures both in portrait and landscape layouts. Recently a problem has surfaced that when they click on any landscape photo thumbnails it comes up with a gray box with a dashed outlined frame with an exclamation point in the middle. The portrait pictures work fine. One thing I tried was to drag any landscape thumbnail to the desktop. Nothing happens. But it will transfer any portrait thumbnails to desktop. The person that owns this says this just started to happen, they said they did not do anything to the computer or do any upgrades? Any ideas. Thanks!