[SOLVED] Update to "page Editor Disappearing" - good info
 

So, the problems discussed on this thread came back - no page menu editor, and 500 server errors kill the entire site when any type of form creation plugin is activated.

After some googling, found an issue with 1&1's hosting regarding memory allocation for php.

The fix:


Create a text file and name it “php.ini” (without the quotes ) and with a single line of code in it:

memory=20MB

This file has to be placed into the directory /wp-admin/ within your WordPress installation.

Everything's fixed - whew.