OS support:
Windows 98
Windows Millennium
Windows 2000
Windows XP
Windows 2003 Server
Windows Vista
Rotation requires the latest display drivers for
-ATI Radeon and newer
-Intel Extreme Graphics and newer
-Matrox Parhelia or newer
-Nvidia GeForce and newer
-S3 DeltaChrome and newer
-VIA Unichrome and newer
-XGI Volari and newer
Some Rage128 Mobility and SiS drivers also support rotation.