[Dx4win] Same call window

[f5nly at orange.fr]

Hi,
I got a problem with this window. After an upgrade a few weeks ago from a 6.05 version to the new one 9.0.9.1259,
my old log is ok to this new version. When I log a contact, I see it immediatly in this window "same call".
But the next day, it desapears from this window and that is the case for all contacts made after my upgrade.
There are in the log but I cannot see if I have already wkd them in this window.
It's not the cas for my old QSO's, before the upgrade, I type a call and it appears correctly in the "same call" window.
What I have done wrong ?
Tnx, 73 Lee F5NLY.