Turn on the error reporting or check your PHP error log to find out the error.
To turn on error reporting in Magento, goto index.php in the root directory
add
Mage::setIsDeveloperMode(true);
and uncomment
ini_set(‘display_errors’, 1);
To find your PHP error log - try outputting phpinfo() and check for "error_log" or ask your web host.
Let me know what works!
Kimberely Thomas
Magento Certified Solution Specialist
Business Solutions Architect
Magento, Expert Consulting Group
@magentogirl