Tmux borders are drawn with dashed lines; how can I change them to continuous lines?

Question

I\'m using Mac OS X Lion, Terminal.app and Tmux version 1.6. I get a dashed line as a window border instead of a continuous line that I get when I ssh into a Debian virtual mach

Answer 1

late to the party but might be useful:

• pick a different font for non-ASCII characters
• reduce vertical spacing until vertical separators join into single line