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After you remove and add a Trident Video Accelerator CyberBlade i1 driver, settings under Power Schemes for Sleep and Hibernation may not appear. Also, the Hibernation tab may be missing from the Power Option Properties dialog box.
This behavior can occur because Windows XP does not allow a computer to hibernate if Windows XP cannot recognize a specific hardware device.
To resolve this behavior, contact the manufacturer of the driver to inquire about availability of a driver that correctly implements power management functionality.
This behavior is by design.
For more information, see the following article in the Microsoft Knowledge Base:
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.