It looks as if the aspect ratio of the selected resolution is different from what you actually have, and most likely it'll be related to the scaling. We're running a number of tests and trying to figure out what's causing it.
Hello, are there any news about this issue - were you able to replicate it?
I am pondering whether I should wait for a fix, or play Witcher for the second time instead in the meanwhile.
Again, I am available if you need any more info about configuration etc.