Once upon a time there was a very old browser that continued to haunt web developers across the globe long after it should have become ancient history... I still design for IE6 deficiencies as of this writing. Internet Explorer is the only browser that I have to check three different versions when I am coding and cutting up a new site. One of it's limitations that was becoming increasingly difficult to deal with was it's non-support of the transparency in a png file. gifs just no longer cut...