I can't do anything with the boxes. But, remember that the demo is not, sequentially, the first three levels of the full game. And, also, in the full game, you can return to previously finished levels. Perhaps, one will acquire a necessry tool to open the boxes in an earlier or later level in the full version.
This is one of the problems of releasing a demo that has levels taken "out of context". But, I think it is a really good demo. I just want Ambrosia to get the full game in the mail.
And, Elizabeth's web site is really nice looking - great job. I am sure I will be visiting it often.
Cathy