[Dxbase] Contest mode

Tue Dec 5 12:18:19 EST 2017

While I realize DXBase isn't a contest program I'm not a contester either so 
it's (normally) good enough for me.
That said, this past weekend I was operating in the ARRL 160 contest and had 
contest mode active, with a starting time of 2200Z on Dec 1.  For the first day 
the Dupe warning worked, but the next day it didn't, until I changed the staring 
time to 0000Z on Dec 2.  Of course earlier contacts weren't flagged as dupes but 
there weren't many so it wasn't an issue.
Come Dec 3, the problem recurred.  It appears that the mode is only good for 24 
hours.  I don't recall this being the case in the past.  Am I forgetting something?
Wes  N7WS