I have just installed SugarCRM Professional 5.2.0c..

After configuring this fresh installation I went to the "Campaigns" module and selected the "Email Setup" option. After filling all the information, when I submitted it, I had to wait more than 10 minutes for the browser to finish loading the page. After all this time the page that showed up shows this:
"Query Failed:SELECT u.id FROM users u WHERE u.deleted=0 AND u.is_group=1 AND u.user_name = 'User Name'::MySQL error 2006: MySQL server has gone away"

My server specs are:
Apache version: 2.2.11 (Unix)
PHP version: 5.2.9
MySQL version: 5.0.75-community-log
Architecture: x86_64
Operating system: Linux

My php.ini file already has
"error_reporting = E_ALL & ~E_NOTICE ;"

Does anybody know why is this happening? Can anybody help?