I have a Windows XP computer that has a similar problem. I go to print in Excel, change the setting to landscape, and the print preview shows portrait. I have uninstalled and reinstalled the printer drivers. The printer is on a network, and no other computer has this problem. It only happens in Excel and only with this computer. If I send the document to another printer, it prints fine. If I reboot the computer, sometimes it works ok after that. I have an HP 4050 printer as the default printer. It happens just often enough to be irritating. Any ideas would be appreciated