Notefinger, You may want to post an image to show what you are getting, but let's see if we can figure it out from here.... The bi-gradient background is not enough to give you the appearance of glass... you're best bet to test the glass is to use a map in the background. Any jpg or so will be enough to give you the effect of transparancy that you are looking for. The problem with glass in any raytrace render is that you need something else to see through the transparancy. Some people put object behind or in the glass, some build a small environment of simple (or REALLY complex) objects to surround the glass (in front of or behind the camera). If you can see the objects through the glass then you are probably getting the black from the environment around it. Try checking the shader transparency level... These are suggestions that I would use to check to see if you are getting what you need. You can always delete the objects later. Keep Plugging at it, you'll get there Ken