Edges on Transparent GUI - Still not working

Ok, I am getting black edges around by imported image that has been set as a GUI texture. I’ve searched the forums and online several times, finding and following this link: forum.unity3d.com/threads/2181-Photoshop-how-to-perfect-fringeless-alpha-perfect-edgelines

I did all the directions from this post, saved it as a .tga, and imported it. Now, most of the black lines are gone, but there is still a little sliver…it’s annoying.
[9467-black+edges+on+a+transparent+pic.jpg|9467]

\What am I doing wrong?

Pixels of the image must match the Height and Width of the guiTexture and the compression to “true color” or 16 bits for better resolution.