Redmine

Hi

I have an interesting situation:

Just installed CentOS 6.5, Ruby (via rvm), Redmine, phpMyAdmin, etc.
When I visit a web test page (phpinfo()), it says "Application error. Rails application failed to start properly". But when I visit the same with https: infront, the page appears as normal.
Why can I not view with http:?
Apache serves phpMyAdmin fine... (not in doc.root) However I use Nginx 2 serve Redmine on port 8005.
I've tried 2 stop nginx service (and also at boot + reboot) and disabling other services, but no fix.
It seems that Redmine (via Rails) is stealing port 80!
I wanna serve Redmine on port 8005 - works fine with nginx; access local html pages both http & https.
Can some1 provide a fix or at least steps 2 troubleshoot this?

If this helps:

Environment:
Redmine version 2.5.1.stable.13103
Ruby version 2.1.0-p0 (2013-12-25) [x86_64-linux]
Rails version 3.2.17
Environment development
Database adapter Mysql2
SCM:
Subversion 1.6.11
Darcs 2.8.0
Mercurial 1.4
Bazaar 2.1.1
Git 1.9.0
Filesystem
Redmine plugins:
redmine_gitosis 0.0.5
redmine_knowledgebase 3.0.4