http://slashdot.org/article.pl?sid=04/01/08/0111228&mode=thread&tid=152&tid=185

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=hYoBb.25499%24o9.19199%40fed1read07

...this latest version of Adobe's flagship product has the built-in ability to detect that an image is of American currency. Something has been built into Photoshop's core coding that can detect something in images of currency and will prevent the user from opening the file. Apparently it will also do this with Euro notes...

duh