my apple powerbook g4 is not starting up i only c the blue screen with the apple logo n the circl thing

olz help me

was trying to install tiger n then it had erro cause my cd had broken
scraces /..can any 1 tell me how do i change back to panter ..i dont have panter os disk

nixgeek http://nowonder.com/forums/images/st...er_offline.gif vbmenu_register("postmenu_1287926", true);
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To zap the PRAM, hold down Command-Option-P-R after the startup chime.

However, you might want to do the following. Hold down Command-Option-O-F to go into Open Firmware. Once in there, type "reset-nvram" and hit return. Once returned to the prompt, typr "reset-all", hit Return, and the Mac will reboot. Be sure to leave out the quotes on both commands. Hope this helps.

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• Apple iMac G5 17" (2 GHz G5) - Mac OS X 10.4.7
• Apple Macintosh Quadra 650 (33 MHz MC68040) - Mac OS 7.6.1
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somw 1 said do tah ti did now i c some codes on my screen