I installed the experimental
from this post, which contains only the exe, no settings files, so I assumed that would be harmless. When I next opened NeoLemmix, my hotkeys were overwritten with the defaults, and the game window is shrunk to a tiny size. I checked the settings file (which I have attached, just in case) and it says "WindowWidth=960; WindowHeight=600". My screen is 1366 x 768, and the NL window is less than half that size in each dimension. Other than ditching the experimental, how should I get my preferred window size back?
EDIT: I reinstalled the main 12.6 exe, and it still has the window size issue
EDIT 2: I installed vanilla 12.6 into a new folder, and it works fine. However, even after copying the settings file from this new installation to the folder with the experimental, the latter
still has the window issue. I've also tried changing the "960 x 600" in settings to "1280 x 800"; no effect.