There's a (very, I think) small chance, that it works OK on paper, and only half in print preview. Did you check that.
If it doesn't print correctly either, I'd update the printer driver.
I've tried printing in landscape and it keeps showing up in print preview with only half a page, the other half keeps getting cut off and i've looked through the settings but don't know how to fix it, has anyone had a simular problem?
If so, how did you fix it?