How to get rid of "gnome document preview"? I don't like it, it's featureless and I can't select a printer. After downloading a pdf with iceweasel and clicking on the pdf in the download list I'd like evince or xpdf to appear instead. I can't figure out how to change this, I can't find this "gnome document previewer" in /etc/alternatives. Also I can't even intuitively figure…