Will not open image file (error message is :unexpected end-of-file was encountered.
#1
The file is corrupt. Take a look here <
http://www.adobeforums.com/cgi-bin/webx?13@@.2ccd809a/4>. That thread involves the same problem with JPG's but the solutions are the same.
#2
If it was emailed or copied from another location it may have not come over complete.
#3