On a computer that has an ATI Rage Pro accelerated graphics
port (AGP) 2X video adapter installed, when you attempt to put the computer into Standby mode, you may receive the following error message:
The device driver for the "ATI Technologies, Inc. 3D RAGE PRO AGP 2X" device is preventing the machine from entering standby. Please close all applications and try again. If the problem persists, you may need to update this driver.
This behavior occurs because Windows XP does not provide power management support for this video adapter.