Lately, page has been having troubles displaying an increasing number of PNG image files. I'm not sure whether this is due to any recent changes or what... Even a PNG of /dev/screen taken with topng(1) renders just the dreaded question-marks.
Any ideas what's going on here (as a simple test, you can first try the screenshot on 9grid.es, which is a PNG, and also isn't rendered by page(1) for me, then you can try taking your own snapshot with topng(1))? ak