I am putting isometric views in my assembly drawings. The on-screen image quality is very poor. It is difficult to even distinguish what some smaller parts are.

PDF output is also affected, rather than a vector based pdf, with clean, scalable lines, I am now gwtting the same poor quality bitmap in my pdfs.

I have been experienceing this since moving to SW2014. Is there something new in 2014 that is causing this? or a setting somewhere?