Graph image file empty

I got "graph image file is empty" with two different graph formats. My data validated without problems, but it would be nice to have the message e.g. in green like on the markup validator.

Regards,    Martin.


#-#-#  Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University
#-#-#  http://www.sw.it.aoyama.ac.jp       mailto:duerst@it.aoyama.ac.jp     

Received on Saturday, 25 November 2006 04:38:35 UTC