Hi,
I had to do some jobs in Calc, and encountered a strange problem, when I tried to print a worksheet which was a A4 landscape format page. The program has shown an Unknown error message and won't print the page 3.
But as I did select manually the area of page 3 it worked fine.
I don't know whether somebody else met this problem, but this is a possible solution. It is also possible to export the document as PDF and then print them from within AcrobatReader.