I recently replace my old harddrive with a newer (larger) one. After re-installing Windows 98, I found that the Advanced Power Management support (under System Devices in System in the Control Panel) was disabled.

I tried updating the driver, but I could not find any updated driver on the Windows CD, or on my old harddrive. Windows says it is using the most up-to-date version of the driver, but it disables it (the yellow ! icon appears next to it).

Any help would be appreciated.