Asian fonts in preview?

I've noticed recently that certain pdf's created in windows will display correctly on screen in preview, but the characters are often jumbled together when I print. This does not happen when I pring the same document from Adobe Acrobat or Reader. If both the display and the print were off, I would think it was a missing font, or just one that preview can't access. But I'm confused about why it would display correctly and then print incorrectly.

thanks!