[Dx4win] DX4WIN freezes for a particular callsign?

[Rick Borken]

Here is something I found very strange. I wonder if anyone else has seen 
similar behavior by DX4WIN? I'm using v 7.07.02.

Yesterday I worked 3A2MD on 20m CW. As soon as I entered the callsign in the 
callsign entry window, the program froze. It wouldn't let me save the 
program, delete the callsign from the window or anything. I had to use 
Ctrl-Alt-Delete to end DX4WIN and re-gain control of my PC. It did the same 
thing three times in a row. The only way I could manage to enter 3A2MD into 
my log was to enter a dummy QSO with the dummy callsign 3A2AA (which worked 
fine), export a one-QSO ADIF file containing that dummy QSO, edit the ADIF 
file to change 3D2AA to 3D2MD, and import it into DX4WIN. That worked fine.

73, Rick K0XB