[support] Blank page in Safari

[Prothero William]

Folks:
I'm getting a very odd problem with my site. On my site, I get a normal front page. When I log in, I get a blank page. This happens on Safari in my desktop mac, Firrefox, and Safari on my iPad. 
What could cause this? If I erase all of the cache data, I get the front page again.
http://es.earthednet.org

Bill

William Prothero
http://es.earthednet.org