works fine after install but no output after a while

I installed from the quick gk_myfolio_quickstart_J!17.

Ran though the installation and complete. Admin login ok, Site also ok.

Came back after a an hour to the site nothing is output to the firefox browser.( install and initial test done on firefox no problem)

Did a view page source on firefox shows nothing. Admin site is working. cleared cache but there is nothing to clear.

I installed on two seperate sites/server same result after an hours. nothing was change in between.

PHP Settings:
Safe Mode Off
Open basedir None
Display Errors On
Short Open Tags On
File Uploads On
Magic Quotes Off
Register Globals Off
Output Buffering Off
Session Save Path /var/lib/php5
Session Auto Start 0
XML Enabled Yes
Zlib Enabled Yes
Disabled Functions None
Mbstring Enabled Yes
Iconv Available Yes

PHP Version 5.3.2-1ubuntu4.9

Configuration
apache2handler
Apache Version Apache/2.2.14 (Ubuntu)
Apache API Version 20051115
Server Administrator webmaster@localhost
Hostname:Port 127.0.1.1:80
User/Group www-data(33)/33
Max Requests Per Child: 0 - Keep Alive: on - Max Per Connection: 100
Timeouts Connection: 300 - Keep-Alive: 15
Virtual Server Yes
Server Root /etc/apache2
Loaded Modules core mod_log_config mod_logio prefork http_core mod_so mod_alias mod_auth_basic mod_authn_file mod_authz_default mod_authz_groupfile mod_authz_host mod_authz_user mod_autoindex mod_cgi mod_deflate mod_dir mod_env mod_mime mod_negotiation mod_php5 mod_reqtimeout mod_setenvif mod_status


I also installed joom1a 1.7 from Joomla site and install the template gk_myfolio_J!17.zip with no change to any other items, it works. Do not see the same problem as above.

Apache /var/logs/apache2 shows no errors.
also the log for the joomla shows nothing.

It just died.

Hi, just did another installation with the gk_myfolio_quickstart_J!17. After deleting the installation folder, clicked on the site button at the installation complete page.

Can see the home page. The moment I select Home menu nothing displayed.

I can login to the administration panel and select another template as the default. Site works.
Reselected gk_myfolio again and nothing comes out.