So I recently installed Dungeon Keeper on my brand new rig and applied the KeeperFX Mod. Everything works fine up until the gameplay starts. Upon actually entering a dungeon the screen appears to be zoomed in ever so slightly, obscuring a small portion around the edges of the screen, thus creating overscan. I've been tweaking the in-game resolutions for about an hour now and haven't had any luck. So I think, "Well, maybe I'll just have to use DosBox instead." I boot up the vanilla GOG version and load up a map. SAME PROBLEM.

Things I have tried...
-Increasing resolution (Stretched the image way too far offscreen)
-Decreasing resolution (game would not start)
-Run in 64x480 compatibility mode (no noticeable difference)

My desktop resolution is 1920x1080, running Windows 10, using a Nvidia GeForce 1060 GPU. If anyone has any insight, I sure would appreciate it.

Run KeeperFx and try switching screen resolution by pressing Alt+R. You can also edit the line INGAME_RES in the config file (KEEPERFX.CFG) to set your own resolutions. I suggest you to to set it as this and then try switching between them:

I've already tried all of what dr.schliemann has suggested, to no avail. I'll take a look at my gpu settings and see what u can come up with.

EDIT: Turns out I needed to set my GPU to perform scaling on the GPU and not the display (which was the default setting. Thanks Gydion!

OMG Vampire-Jekyll you are a bleeding miracle! I never noticed that was the ONE problem with ALL my GoG games overscanning, and my original Baldurs Gate disks too! Thank you sooooooo much!