I went into System Options mostly out of curiosity. I didn't tweak anything significant (or so I thought), however it has had the effect of increasing the weight of ALL lines in my parts (edges, lines indicating planes, labeling of the planes, etc). I went back into System Options and anything to do with size or weight of display elements is set at the lowest value, same as it was previously. Is there a way to go back to the original default values? Or does anyone have any suggestions on how to return to having thin lines?