I have found the following issue and was wondering if anyone had any ideas on how to get around it. If I create a cell in "responses.xls" that is neither a predetermined number, nor a calculated "score", but rather a cell that is a random number generator, it makes the entire screen in medialab (2004) go blank.
I have attached a short (3 page) experiment, and its "responses.xls" file, so that you may see the issue for yourself.
Thanks to whoever solves this issue