I read the "Fixes to common problems" post and, as suggested, I tried using the Gamers Window Relocator to no avail. I'd like some feedback on if I'm using it correctly, or if there's a better alternative.
Here's what I did, step by step:

- Downloaded and installed GWR.
- I ran The Witcher, and disabled Fullscreen. Resolution is in par with my screen's (1600x900)
- Closed The Witcher
- On GWR, I selected The Witcher from the list, NOT the launcher. I also checked the box "AutoRelocate if game is running".
- I ran The Witcher. Got mad, didn't run on Borderless.
- Closed it.
- Went to check GWR. On "Options" TAB, I changed the values for my screen's resolution.
- Ran the game. Didn't work. Got even more angry.
- Rebooted PC and tried the past 2 steps. Same thing.
- Frustration.
- Came to GOG to write this.

I've actually never used Gamers Window Relocator myself, but I'd heard that it worked for The Witcher in these forums so I mentioned it in the sticky thread. I have used ShiftWindow for another game and it worked, so maybe try that instead?

Anyone else know how to get Gamers Window Relocator to work?

Well, ShiftWindow is pretty good. I guess I'll use it instead of GWR.

A trouble came up recently, though. After installing the new drivers that came up with the release of the Nvidia Geforce GTX980 and GTX970, ShiftWindow no longer works. Anyone else having problems as well?