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Advice and troubleshooting, Switching between mac os x and mac os 9, If the computer won’t respond – Apple iMac G3 User Manual

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If you don’t find the answer to your problem
on the following pages:

Look in Mac Help.

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In Mac Help (see page 24), you can find a great deal of troubleshooting
advice, including information to help you solve problems with

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Connecting to the Internet

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Using software installation and restore discs

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Changing your computer’s settings

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Printing

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And more

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Click the Finder icon in the Dock, then choose Mac Help from the
Help menu. Type a question in the search window (for example,
type “How do I eject a disc?”) and click Ask.

Switching between Mac OS X and Mac OS 9

Your iMac is set to use Mac OS X. Most applications made for Mac OS 9 will
work in the Mac OS X Classic environment. Just open the application as
you normally would. You can also start up your computer using Mac OS 9.

To set your computer to use Mac OS 9:

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Choose System Preferences from the Apple (K) menu in Mac OS X.

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Click the Startup Disk icon to open the Startup Disk pane.

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Select the Mac OS 9 folder as your startup disk. If the icons are
dimmed, click the padlock icon and enter the password you chose
when you first set up Mac OS X.

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Click Restart.

To set your computer to use Mac OS X again:

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Choose Control Panels from the Apple (K) menu.

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Open the Startup Disk control panel.

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Click the triangle next to the hard disk that contains your operating
system folders.

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Select the Mac OS X System as your startup disk.

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Click Restart.

If the computer won’t respond:

First, make sure the mouse and keyboard are connected.

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Unplug and then plug in the connectors and make sure they
are secure.

Then try to cancel what the computer is doing.

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Try to force problem applications to quit. Hold down the Option and
Command (x) keys, then press the Esc key. Select the application and
click Force Quit.

Advice and troubleshooting

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