I have a couple of hatch patterns that show up just fine in the Preview window but then get all caflooey on the drawing. I have tried making the hatch a different pattern and with most, don't have the same lines issue. The issue does recur with a few patterns, mainly the more rustic looking stone patterns. Any idea why the Preview hatch looks just fine but when that hatch is used, it gets all wonky with the lines? I checked and I do have the linetype set to Solid. I played around with the line spacing and that didn't change anything.