Grimrock

When I try to play in 2560x1600 resolution in fullscreen mode I cannot access the first and last menu item. When I click on it, nothing happen. That means, I cannot start a game in this resolution!. The other menu items between the first and the last are full functional.
When I start a game in another resolution (windowed) all works fine.

I have the same issue. Looks like the menu bounding boxes are out for this resolution. Switching to a lower resolution fixes the problem. I was then able to click New Game. I then switched back to 2560x1600 for main gameplay.

Yeah, sorry about that. This will be fixed in the next patch. In the meanwhile you can also use the arrow keys and return to navigate the menus.

I was able to start a game aat 2560x1600 by hovering the mouse over the new game entry and pressing return on the keyboard.