click on render options in the rendermenu and click on anti aliasing also click new window and set the image to a higher pixel level i use 1200 by 1200 at 72 pixels per inch then click render a new box will appear on your screen allow it to render then close it poser will ask if you want to save click yes remember it will take longer to render than normal because it,s a bigger image size, hope this helps if you need any more help let me know