Hi,
It seems that the picture is corrupted when you edited it via Gimp. Please understand, Gimp is not a Microsoft’ product, I haven’t much information about
it.
I suggest that you could try to contact the software provider to check this issue.
http://www.gimp.org/
Note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
William Tan
TechNet Community Support
