Hello, i have faced this problem in my newest installation of Zenphoto 1.4.11. I have set it up using XAMMP v3.2.1. I have uploaded using FTP 240Gb of photos. Everything is working fine except the edit gallery option. When i click on a gallery it gives me an empty page and in the PHP error log appears PHP Fatal error: Allowed memory size exhausted.
In php options i have set memory_limit=512M.
This is a clean installation and i use the default settings.
Can you please help me.

Thank you

240GB all at once is a lot and if the images are huge it is probably just overloading your server. Please review this: http://www.zenphoto.org/news/problems-with-albums-and-images