ok guys
Subject to close.
Problem solved !!!
I had to change the permissions and add my user for the folder and all its elements in:

C: \ Users \ [username] \ AppData \ Roaming \ Opera Software

Thank you all for your interest and help.

@vicarious
hmmm. I'm doing like this all the time and dragging, from one screen to another, tabs with video or something else with no problem. ...
.... and when i'm dragging tab to another screen like window explorer
Maybe you have something in Windows settings to setup or you're using 3rd part soft to manage multiscreen like CCC or something.

Yes, changing Opera profile doesn't change anything, still 1st run for each open.
That only happend on my default win user and only with this GX, on other win user and with the same opera profile is OK.

@leocg
Hi
so, that we understand each other well,
change that I did, then everything is OK!
is installing GX on a new user under Windows 8.1.
When it comes to the Opera profile, it doesn't change anything.
So the problem is the default user settings under Win and here something
does not match ...... but what?

Any Idea?
(I don't want create new User or reinstall system 4 GX)

THKS!

@leocg
Yes you are right.
Everything is OK on the new user.
Thank you very much.

Do you have an idea that this state of affairs is available on my default user?
(I have not seen similar problems with other browsers)

I would be very grateful for your help!!!

Hi,
I really ejoy & liked GX but with this issue I can't worked on it.
After reopen only sing of my activity before quiting is

• history
• DL files
• password
  Rest, like Bars, GX, Bookmarks, Extensions, Synch, opened Tabs and etc.,
  settings are back to default like in 1st run.
  WHY?!?

thks!

P.S
WIN 8.1 Pro
I7 4770k
16 GB