Believe me Huey, it's the
aspect ratio that you needed to match up for the TV to the game graphic options. 1920x1080 has an aspect ratio of 16:9. You stated your TV was setup with a 1280x720 resolution for Windows. 1280x720 is also a 16:9 aspect ratio. Same aspect ratio, different resolution..... and poof......it works.
It's the varied aspect ratios that a player uses (every player uses different computers, monitors, graphic cards to play the game on) that prevents the game from displaying the same view through the periscope. One person sees a target ship sized differently on his computer, compared to another gamer who sees the same target ship. This makes manual targeting (which relies on what a player sees through the periscope views) inaccurate when trying to use the stadimeter, or any other way of judging distance with the view. You would think the game considered this when it released the game (or made it's 5 patches). It didn't, and we're left with this inaccuracy due to the different aspect ratios everyone uses.
That's why I made
Optical Targeting Correction. It's to correct the errors inherent in the game, and give a player the chance to use manual targeting as intended.