My image displays properly in the editor, and all properties seem to be set correctly. But when it's displayed live on the site, the image is stretched out somehow but only the upper left part is visible. See here: http://planspace.org/2013/07/24/clustered-r-squared-heat-maps-in-r/ It actually looked okay yesterday when I posted it; it seems the problem arose without any action by me, which makes me think this is a wordpress.com error.
And further, I'm a paying customer here; why can't I find proper support?
The blog I need help with is planspace.org.