Wierd Print Problem

[John Graddy]

I am running EDGY.  Have an HP 6100 multi function along with HPLIP
1.7.1.  If I print a screenshot (a .png file)using the Image Viewer
(gImage), I get a solid black image.  I have downloaded other .png's and
successfully printed them.

I also get a solid black image if I print the screenshot with gThumb
Image Viewer, 

  I emailed a screenshot file to my wife's computer (Dapper 6.06 with
all updates, HP 970Cse, HPLIP 1.6.12) and she also gets a solid black
image.  

I have successfully printed screenshots in the past on Dapper.  The only
thing that I can find that may be part of the problem is an update to
'eog' installed on my wife's computer in October.  This update installed
eog 2.14.3.  There have also been lots of updates to the various
libraries. (I'm assuming that all of the Dapper updates were included in
the Edgy (6.10) Herd 2 download).

I would greatly appreciate any suggestions as to how to resolve this
problem.  I'm currently just opening the file in the Gimp and printing
it.

Thanks,
John