Just made a fresh install of Orchard CMS 1.3.9 and I'm getting an error via Fiddler and Google Chrome Dev tools of HTTP Error 502.3 Bad Gateway on two files:
/Themes/TheThemeMachine/Styles/Site.css and /Core/Shapes/scripts/html5.js
I have the proper rights, etc... I have installed Orhcard 1.1 some time back and didn't experience this issue. Found nothing on the Forums or Google ... baffled!?
The wizard will go through the install (without the CSS styling) and shows the default fresh install content, but not CSS styling.