How do I put an apple laptop ibookG4 back into normal mode

Go to this page:
Adobe Install different version of Adobe Flash Player

Then click the link on the bottom-left that says this:
"If your operating system/browser combination is not displayed, click here for older versions of Adobe Flash Player.

pdf reader is free. go to google and look up adobe pdf reader.

this machine is no longer supported by adobe, as the power pc architecture was abandoned several years ago. Look on sites that specialize in old software.

This website requires Flash, version 11 or higher. The last version of Flash that Adobe released for PowerPC Macs like the iBook G4 was 10.1.

Hopefully this will resolve your question, if not:
What o.s?

http://www.ihackintosh.com/2009/05/how-to-hack-the-user-password-in-mac-os-x-without-an-os-x-cd/

Reboot is the term for shutting your laptop off and restarting it. as apposed to leaving your laptop running or in standby at all times.
The easiest way to restart is go to the Apple Menu in the top left corner and selecting Restart. You will be asked if you really want to restart.

The other way is to push the power button once and it will bring up the window asking if you want to shut down or restart.

your having an overheating problem its either your processor or your chipset inside the laptop..let it rest for a while put a cooler pad under your laptop while using it to prevent further damage..i suggest you backup all your data also before it crashes permanently..also bring it to your nearest mac service center...hope this helps

Try to go into your system setup in control panel and roll back the driver you just updated back to the one it had, and disable automatic updates to that device.

Reset the PMU:

http://support.apple.com/kb/HT1431?viewlocale=en_US

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

hello
You can reset your password from your install dvd:
http://support.apple.com/kb/HT1274