I've produced the logo included below for my new blog, a film/movie review site. The background of the site is plain black; the logo is a PNG with transparent background. When it displays on the background the film reel has a white edge to it, presumably because the image used to have a white background which I removed. You can see the image in context on the linked page.
How can I remove the white edging and achieve a seamless meld of the image into the background?
You either need to export that GIF with the proper background/canvas color (dark gray), or use an 8-bit PNG graphic with Transparency.