G4 freezes after sleep. How can I fix it?

When I try to reawaken my G4 after putting it to sleep, the display comes back on, but 80% of the time the screen is frozen. Then I have to shut down and start up all over again to thaw it. I appreciate any ideas to fix this.
Thanks, Duncan
Mac G4 Mac OS X (10.2.x)
Mac G4 Mac OS X (10.2.x)

Gary and John, Thank you for replying! I had several USB hubs connected and I had been connecting the keyboard and mouse through one of those. So I tried connecting the keyboard and mouse directly into the computer and the sleep problem went away! Thank you!
Apparently it wasn't a problem on start up but when awakening from sleep it needed more power. Since I'm "port poor" out of the G4, I have added a new powered USB hub and connected the keyboard and mouse to that. It now seems to come back every time from sleep without freezing. Thank you again.
Best, Duncan
Mac G4 Mac OS X (10.2.x)

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G4 freezes after sleep. How can I fix it?

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