Well, now that we have the pleasantries out of the way....I was reading in the Yahoo forum that a lot of people were having problems with DateBk5 crashing when they put it in flash memory using JackFlash. The answer was that there was a conflict due to the size of the DateBk5 program and you need to use version 2.6 of JackFlash in order to get it resolved.
This seems weird to me because I have had DateBk5 in flash for a while now without any problems. I hope this helps you out!!
By the way, I didn't mean to accuse you of anything, it is just a common occurrence with cracked versions of DateBk. Thanks for clarifying how you got it so I could try to help. Enjoy!!!