[Dx4win] Bad License File????

[Karl Oyster, K1KO]

Can anyone tell me (1) why my DX4WIN 7.02.15 has suddenly started 
to give me a window which says "Bad License file" after signon, 
and (2) what I can do to get it back as it should be???  The 
logbook window still has all my QSOs in it, but the very top, 
blue, space at the top of the screen says "DX4WIN demo."


The only thing that has changed is (I think) that I put the latest 
country file in, following the instructions, the save directory. 
Pretty sure I did it correctly.

Thanks, in advance,

Karl, K1KO