I put an ImageList on my windows form and added an icon to the images collection property via the designer. Now when I use this icon in my form, for some reason the icon has a heavy black outline around it, where did this come from? When I look at the .ico file in windows explorer its perfect no ugly outline just a crisp graphic. I've been trying to change the properties of the ImageList but no joy. Any ideas on how I can resolve this? How does windows explorer manage to display the same ico file buit without the ugly outlining. PS I really don't wat to start editing the icons in a graphics app.