Why won't my Power Mac shut down?
At first the computer would randomly start up by itself, not only when power was restored. Now the computer wont turn off when shut down is selected. Is there a simple fix?
The G4 Quicksilver came in 533MHz, 667MHz, 733MHz, 800MHz, 933MHz, And 1.0GHz speeds.
Tough one. What's the date on your computer? What happens when you power down using the start button? Hit command -option - escape (force quit) and tell me what's running. Do you have virus protection? You can always unplug it, but let's see if we can find a fix.