Hi all. First post here, though I've been using Xara professionally for year!

I'm working on some iPad 3 development and I'm really struggling to achieve the crispness that the retina display demands. I'm exporting PNG files from pure vector images, at the correct resolution, and playing with the dpi settings makes little difference. The image is not as sharp as it should be, especially with text. Annoyingly, Illustrator is able to export very crisp PNG images.

Is this a Xara issue of am I missing something obvious?

Thanks in advance for any help.