Power Management won't work

[Crash7]

I'd like to use my Power Management app in Win 98 but the standby mode doesn't do anything. The HD and monitor shutdown feature will activate but won't respond to mouse or keyboard activity in order to restore to powered on mode. I end up having to press the start button to reboot. I tried enabling and disabling the features in BIOS but still nothing works as intended.
Am I missing something here or perhaps doing something wrong?

Here's the basic specs on my sys:

AMD K7 600 CPU
Asus K7M Mainboard
256 MB Micron PC 133 SDRAM
Matrox Millenium G400 32 MB video
IBM Deskstar 20 GB UDMA 66 7200 RPM HD
Win 98 SE

Thanks to anyone who can help.