Graphic Converter Problems?

Check out these two pictures... I was planning on adding them to the list below, but they are messed up... Could it be because of the batch convert I ran them through in Graphic Converter? Why aren't all the pictures ruined? If I get around to it, I will try to do another post with the "good" pictures linked so you can compare...

sunset2
stainedglass*

*can stained glass be copyrighted? Is it usually?


What do you think?