Sometimes when I print a circle or an arc it comes out as a polygon? Any ideas?
What are you printing to?
I am printing to an Epson Artisan 1430 via wifi. I have also had the problem printing to a Brother.
I've never heard of that in a direct print, though I think it can happen if you convert to files such as .dxf.
To check there's nothing odd about the file you are printing, you could do file > publish to PDF using the prepress preset and print that from a PDF file viewer (adobe reader, foxit etc).