White window in FM2020

Hi all, I just downloaded the trial version of FM2020, may be my company will buy it soon, so I just wanted to look around.

At the start I have a white rectangle, a window, with just the usual closing X at the right top corner.

I suppose it is the warning: "This is a trial version it will expire in 15 days" or something like that, but I can't read nothing of course as it is white.

If I click on the cross at the right top corner FM closes.

But I can work: always with this white rectangle around (I can move it as a usual window).

Any idea how I can delete it?

Thanks!