I am trying to create some ellipse shaped buttons in photoshop to use as navigation buttons on a website. My problem is that although using transparent background the program seems to be filling the feathered edges of each ellipse with white. Thus when its on the website on a blue background there is a white haze. I have tried manually erasing the white but it looks so messy. Is there a setting i need to change to keep everything transparent out side of the ellipse?