Hi don't panic. I know printing can make you pull your hair out first, before you print always save.
I think in terms of printing, Internet Explorer has the best interface for that, so ensure you use that web browser. Check your Page Setup and Print Preview, before you do the print.
These are instructions on printing web pages.
http://www.uwec.edu/help/IE_7/print-opts.htm
http://help.expedient.net/browsers/printing_tips.shtml
