Error solved by checking this forum; http://boinc.berkeley.edu/dev/forum_thread.php?id=8603 On my /var/log/apache2/error.log the last error was:
[Wed Oct 09 09:10:04 2013] [crit] [client 127.0.0.1] configuration error: couldn't perform authentication. AuthType not set!: /
So I followed someone elses solution and commented the line
# Require all granted
just under on my /etc/apache2/sites-available/lab and TADA! I was able to list my Projects directory in my browser.