I've installed Roundcube (v0.9.5-1) on CentOS 6.5.
This was working fine until we made some extensive changes to our apache config.
Now we have a situation where when I got to www.site.co.uk/webmail I simply get a directory listing of what is in /usr/share/roundcubemail instead of the login page I used to get.
The new Apache config doesn't seem to have any obvious issues with it, everything else loads fine, there are no errors logged at all.
Danny