If I was at your system, there are checks that I would do first, such as examining your Personal.xls to make sure there are no macros interfering. I'd check the default template Excel loads. I'd check which printer you are trying to print to, and set a different default printer to see if it made a difference. I'd try to set landscape mode from the menu and also from the print preview screen (yes, there is a difference). I'd set a workbook to landscape on another system, save it to a floppy, and see how it opens on your system. I'd print a workbook to see if it really knows it's landscape but is displaying wrong on the screen. In short, I'd try every possibility before reloading - because if it is some other problem, reloading may no clear it up.