Hello again It turned out, that we need to now two more things: - what is your operating system ( in case you are bringing a notebook ) We need to now this, since all participants will be provided with software, generously donated by Wolfram Research. - whether you prefer special food, like vegetarian, carnivorian, cannibali, whatever. (well, basically we are only going to offer 'normal' and 'vegetarian', even though you may have happened to hear different things about German eating habits) Please send an email to me (don't reply to the list) just containing the Subject line in FOOD-OS format: {normal|vegetarian}-{unix|mac|win|none} (for example: vegetarian-unix) The software will need some time for shipping, so it would be nice to have your answers until Friday! Thank you very much, Martin