There are reports circulating of color shift problems under iPhoto 5 on Tiger, where the image would change color after a number of non-color-related edits (e.g. adjusting sharpness repeatedly). The Irish Trojan’s Blog features an article describing the problem and how to reproduce it. The Deep Thought Staff has yet to investigate this issue but it’s safe to say those experiencing this problem are not hallucinating. Be sure to read the “The Irish Trojan’s Blog” article for the whole story.