[Dx4win] Clearing LoTW Upload Dates

[Steve Thompson]

During my upgrade from version 4.x to the new 8.x, somehow a lot of QSOs
have an LoTW "Upload Date" of Dec 9 1933.  I've never used LoTW, and of
course a date in 1933 makes no sense, so I don't know why some random QSOs
in my log show this date in that field.

I've dug around looking for a way to clear it, and haven't been able to do
so.  Under the "LoTW" menu, there is a menu selection called "Clear LoTW
Upload Date", but when I click that menu selection, it says "No QSOs were
changed", and later, as go through QSOs, I find more 1933 date values.

I'm a SQL developer for my career, but I do not recognize the type of
database that DX4WIN uses, so it's not an easy case where I can run a quick
"UPDATE" statement against the database to clear them all out.  :-)

Any advice?

Thanks.

-Steve N7TX