Nope mate, just find straights easy (which is a good thing in life ), always have done. Also many of them if you carefully line up the blue arrow the blocky pixels on my screen go perfectly straight when lined up right....but this only works on some of the right angles. The one with the three arrows that need lining up is also easy...line up two and then use the third to check against. My eyes hurt now though sitting that close to the screen