Title says it all. I've attached a screen shot of part of the coil drawing.

I've made different drawing files from the coil assembly, but each one seems to show the same error of not putting lines around every loop of the coil. The coil assembly as a whole is comprised part files of shorter coil segments mated into one longer coil. If I take a part file of a section of the coil  and make a drawing from that, Solidworks renders the coil loops incorrectly so that some random portions have no edges in the drawing.

Zooming in using the mouse wheel doesn't make the "invisible" coil lines appear.

The lines (or lack thereof) appear in PDF or eDraw files (made from the flawed Solidworks drawing) just like they do in the Solidworks assembly drawing; the same random chunks of coil have no lines.

Changing the image quality settings under Options -> Document Properties -> Image Quality doesn't seem to help either, even though immediately after changing the settings, temporary "rebuilding" lines appear to be in the correct places for a few short seconds. What else could I try to make the assembly drawing correctly represent the coil assembly?