If you have problems with WordPress and you get the error message WordPress Fatal error: Allowed memory size of ********* bytes exhausted then you have a few options.
1. If you have access to the PHP.ini file, change the line within the PHP.ini which controls the allocated memory 32M try 64M:
memory_limit = 128M ; Maximum amount of memory a script may consume (128MB)
2. If you do not have access to PHP.ini try adding to the .htaccess file:
php_value memory_limit 128M
3. Try adding this line to your wp-config.php file:
Increasing memory allocated to PHP
4. Talk to your hosting provider if you still have issues.