This one has me stumped. I'm helping a friend learn about css and WP Theme creation. When we put a child theme in her themes directory in her MAMP installation it does not show up in the wp Dashboard. Only child themes that are installed from a Zip file show up. When we put the same child theme files into a WP installation theme folder on an external server it shows up with no problem. She even uninstalled and reinstalled MAMP and this is still happening. I have MAMP installed on a different mac and I don't have this problem with child themes.
I think she has WP 3.1.2 on her local machine and 3.1.1 on the external web server.
Any clues as to what could be causing this? Suggestions? Thanks!