I worked on this yesterday, and discovered that the UTF-8 characters will be properly displayed if d-i/build/graphic.utf is printed in the console.
I also discovered that whiptail also got the same problem. Check out <URL:http://bugs.debian.org/187704> for the bug report and a test script. I belive the problem is in slang, failing to convert the linux termcap values for linedrawing into UTF-8. I hope the newt maintainer know more and will reply quickly. :) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]