Annoying!

I downloaded some lovely i mac cons from Agrapha Icons

But, after extracting the archives OK (had to revert to stuffit 7.0), and successfully converting them to PNG's using Iconworkshop.........

There's a very faint black border which shimmers around the edge of my new PNG's when it's running on my MobyDock (0.75DX) ...any idea what this is, or more importantly how to get rid of them?

I've tried messing around with Photoshop - but I'd rather not have to become a graphics artist!

Is there anyway of doing this in Iconworkshop? Have I missed something in the correct conversion process?

Thanks in Advance,

Curtis

#23401