When you say "hidden lines" are you referring to when you're adding views to a Drawing or when working in Modeling and using the 'Wireframe with Hidden Edges' display option? Could you also post an image of what it is that you're seeing so that perhaps we can help figure out what's happening?
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA Siemens PLM: UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
Just toggle ON the 'Self Hidden' option in the 'Format' section of the Common -> Hidden Lines dialog, as shoen below:
This option should ONLY be toggled OFF when there are multiple bodies in a model and you're trying to only show those Hidden Lines that represent the other bodies (check the User Documentation for an example of how and why you'd use this option.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA Siemens PLM: UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.