(nightly) WinXP landscape printing uses 2 papers per page

I've printed a 2-page sheet - regular A4, landscape mode.
4 papers came out of my printer - each page was split on 2 papers - the printer was set to printing A4 vertical (default settings) so it probably just took the input from MS without adjusting. Other software that prints pages (Word, Adobe Reader) rotates the document automatically to fit the paper,
Printing with printer set to print on landscape A4 paper solves this problem.

Using WInXP, current nightly (2ec2c65), printer doesn't matter (virtual printers act the same way)