Missing figure on amova wiki page

There’s a missing figure on the amova wiki page: http://www.mothur.org/wiki/Amova

The error is:

Failed to parse(PNG conversion failed; check for correct installation of latex and dvipng (or dvips + gs + convert)): SS_{among}=SS_{total}-SS_{within}

The others show up fine, so who knows what that’s about. Not a huge deal, since I can guess what the image should be based on the code.

A possibly related error is on the homova page:

Notice: Warning: XML Type check skipped! Check if your MediaWiki installation is version wmf/1.22wmf7 or newer. in /Library/WebServer/Documents/w/extensions/Math/MathRenderer.php on line 150

Can you try again - it’s showing up for me, but it may be in my cache. We’ve been having LaTeX issues on the wiki.

Tried in a couple browsers after clearing cache – still not working. Not a big deal though.