[Dx4win] Error with Country Add

[El Med]

I tried to add just one country (PJ2) in "manual" mode (probably my first mistake!!). Obviously I did something not good. Now I get the following on my screen: "Access viouslation at address 00645660 in module dx4win.exe. Read of address 00000008." I can't use the log as it has basically shut me out and won't let me add QSO's or do a file close.  I think I followed the instructions for Add Country. Yes, I do have a backup. Help would be appreciated. Tnx Eli, N6PF