The RoundCube webmail has been updated.
One of the things you'll soon notice is the new 'skin' - you can change back to the old style if you prefer by going to: Settings - User Interface, and set the Skin to 'Classic'
There is a problem at the moment with the initial login page not working and needing to re-enter your password on the next page - this is being investigated.
Logging in to roundcube is now working as expected from the initial webmail page - sorry for the inconvenience.