Not sure what happened. was working in a drawing creating a surface and using two vertical viewports in model space.
something happened to cause my drawing to display polylines as outlines and not solid. and when selected they show as shaded with some transparency. and the shading
is sectioned off at every feature line it crosses. in addition to that some Tahoma style text is invisible. can be selected, but is only visible when selected.
i've set shademode to 2dwireframe, fillmode is on, ucs is world, set to plan. i'm at a loss of what to do.
and now, any text i create using Tahoma disappears, but not romans.
well apparently i screwed something major up, because it's affected my autocad globally. any pline i create in new drawings are doing the same thing.