Unwanted gray border showing up around images

When I copy and paste PNG images with a transparent background in Impress a small gray border appears.

Note that I’ve gone into ‘Application Colors’ and unchecked ‘Object boundaries’… but the faint lines still appear.

*If I open the originals in Gimp, Photoshop etc… they don’t appear. They only appear when paste or import the image into Impress.

Please see the following image link:

http://postimg.org/image/dtaa4wlmz

m.a.riosv… hey what are you smoking??? There is no way in a million years that my question is spam or advertising

This is a valid and legitimate question and do not understand why it was closed by m.a.riosv.