Garbage on terminal lines driving me nuts!
I've noticed this with Slackware too, so it's probably not
a Debian problem.
If ever I scroll binary data across a virtual terminal the
character set gets completely stuffed - the only things which
come out all right are CAPS and digits - lower case letters
are replaced with the worst gobbledegook...
Nothing seems to fix this other than a reboot - and I really don't
like taking the server down for something so arbitrary.
*Please* tell me this is a known and easily cured problem ;-)