Hold down the Power button for several seconds or press the restart button."

This message, in English, French, German and what appears to be Japanese come up in a gray box on my daughters G4 iBook when she tries to start it. Once it appears (after her desktop loads and dims out) no keys or the trackpad operate. It sure doesn't look or sound like an Apple kind of message at all but who knows.

She has "misplaced" her system disks so a CD start-up is not feasible at this time.

Any suggestions would be greatly appreciated.
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Where have I been?