So, i kind of wanted to make game load faster save games and i think i accidently red some tip for Steam version of the game.

So, i made folder for my old save games and put bunch of them there. After this GOG synced my save games a long time, probably downloading them again to cloud to my computer. I got this save games not synced until i launched the games and quit it. Okay, now i got my save games synced, but problem is that everytime i launch the game i got this Direct 3D 9 Initialization error popup, if i close through ALT+TAB game runs, but has kind of weird resolution and also the Windows taskbar is visible.

I run fix install from GOG app, but that didn't help.

Any clues?

UPDATE: Okay restarted GOG app and wnet to see settings of the Witcher 2 and resolution was somehow set very low, i put highest and the problem is solved.