Stolen shamelessly from Tom.
Basics: Please provide:
FOG Version (e.g. FOG 0.32, FOG 0.33, FOG 0.01)
OS Version (e.g. CentOS 6.5, Ubuntu 12.04, Redhat 6.5)

Can you provide your installation details?
This is now included as a long file in 1.1.0 in location /var/log/foginstall.log

Have you checked your apache error logs? Can you provide information from these logs?
Debian based Location (normally)
/var/log/apache2/error.log
Redhat based Location (normally)
/var/log/httpd/error_log

Have you searched the forums for your issue yet?
Have you checked the [URL=‘http://fogproject.org/wiki’]wiki[/URL] yet?
Kernel Issues: [URL=‘http://fogproject.org/wiki/index.php/FAQ’][COLOR=#737373]http://fogproject.org/wiki/index.php/FAQ[/COLOR][/URL]
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