My line types aren't changing in Model or Paper space. I can change the properties of 1 line or create a new layer, and neither will change the "look" of the line from continous. The properties say the line type is Hidden, but doesn't look that way. I can copy/paste lines in from other drawings that are anything other than continous, and they will look Hidden or whatever type it is. I can even change them to any other type and it displays them correctly. This is in CAD 2012 Electrical.