Having problems getting disko to run because it can't find a font? Of course you are. It's actually a bug/feature in debian's perl/Tk installation. Here's how to fix it.
Others have had the same problem. This thread describes it as well as a fix. Basically, perl needs to be patched and rebuilt.
You will need to download this patch:
Log in to the data recorder PC as root.
apt-get install devscripts libdb4.2-dev libgdbm-dev
apt-get source perl
mv /somewhere/23_fix_utf8_taint debian/patches/23_fix_utf8_taint
dch -n Test Tk fix
dpkg-buildpackage -rfakeroot -us -uc
dpkg –install *perl*.deb