I ran into a weird problem today while making some temp icons for Blitz2. I have made plenty of other normal unit icons for the game...and they turned out perfect. Anyways, I ran into the problem while working on the ssuserinterface512_001.tga.
I have no idea why it is doing that, I didn't edit the icon ini's or anything...I just placed these over the normal icons and replaced them. Hell to be sure it wasn't a size thing, I even made it so that it is surrounded by a transparent white.