Odd thing about the sense codes is that they can go wrong.

Years ago we used to have a powermac 7500 with a Apple Multiple Scan 17. Although it was rated at 1024x768, it had the option of 1280x1024 (or 1280x768...can't remember) and it would work! Sometimes the monitor would 'fold' the screen on itself at that resolution but it was getting old by that time.