Redmine

Guess you're using a custom theme?

I choose Alternate, but with Default theme I've got the same problem..

What's your browser?

Opera, but I tested on mozilla too.
I see redmine.org with lines between posts in opera, then I open my redmine and can't see that lines. As a result it is very difficult to read forum.

I reinstall redmine and with Classic theme I see lines...
So another question: why are they appear only on classic theme ?

Well, I guess this is a choice from the theme author?

You can change this by tweaking your own theme.

I would be very much obliged to you if you tell me how can i do this..

See HowTo_create_a_custom_Redmine_theme, you can get some inspiration from the default themes which are installed in your Redmine public/themes directory.

For your issue you can simply copy the alternate theme folder and remove the

h2, h3, h4, .wiki h1, .wiki h2, .wiki h3 {border-bottom: 0px;}

Thank you very-very much !!
I made what I want !!