[Steven Zahm]

@ Robert

This likely a server configuration issue or an error on another plugin. Here’s a link to a support thread on the WP support forums for another plugin. That author suggested adding an option to the .htaccess file and when that didn’t work they suggested an addition to the php.ini file. Please try those two items one at a time, testing in between.

http://wordpress.org/support/topic/fatal-error-698

Another question, how much memory is allocated to PHP? You can find this on the Connections : Dashboard admin page in the System widget. If it is 64MB, I recommend setting it to 128MB. Here’s a link to an excellent blog post that gives instructions to do that using several different methods.

I hope that helps. Please let me know how you make out.