I created a form in landscape, i did changed the page setup and the view properties to landscape condition. But never gonna work when I use the print preview or print the form out. Please help and thank you.

I ran into the same problem. After much research, I found that my problem was caused by IE 7.0. There is a compatibility bug between InfoPath 2003 and IE 7.0 This has been reported to Microsoft. I corrected my problem, and others, by reinstalling IE 6.0