We just fixed an issue found in the demo version of the Onikakushi Day 14 release. There aren't any problems in the latest chapter itself, but the program may crash during earlier chapters and TIPS. If you downloaded the Day 14 Demo patch before September 6, you will probably want to grab the fixed version.
Edit 10/21/08: we've removed the link to the bugfix since everyone's likely updated their patches by now; you can contact us if you need it, or just download the current release.)
Sorry about that,
Mion