文件名中的双扩展名? * .css.php 404

I'm using a WordPress plugin Easy FancyBox. It uses a dynamic php file for it's CSS. The problem is that my server gives a 404 when trying to access the file, I think because of the dual extensions. The filename is easy-fancybox.css.php The plugin was working perfectly until I switched servers. Is there a config somewhere where I can allow this?

Turns out I can't access any .php file, so it's not the double extension thing, lol oops. I still don't know why though.

After a few hours I finally fixed it. File permissions had to be 755 on the file. I had them at 775. I don't know why it's set up like this, but I found the answer here: IN Wordpress, .php files within the theme folder do not run, but return 404 error

I'm not 100% certain but check that you've transfered the .htaccess as well,

that might be the problem