It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

For some reason the Gog Galaxy overlay isn't loading after i start the game and if i press SHIFT + Tab in game it just shows my desktop cursor. Does anyone else have this problem with the game ??
I have the same problem and also the achievements are not being unlocked