My G5 iMac has a screen color problem. The color is green with lines. What can I do to repar this? Sometimes the screen will freeze and I have to reboot the computer and the screen will be normal for up to 5-6 hours and then suddenly changes back to green

My G5 iMac has a screen color problem. The color is green with lines. What can I do to repar this? Sometimes the screen will freeze and I have to reboot the computer and the screen will be normal for up to 5-6 hours and then suddenly changes back to a greenish color.

Try running in Safe mode.  This leaves out some video drivers.  Which results in machine not using advanced video hardware.
for more details see:
Look through this thread. see the second page.
https://discussions.apple.com/message/16057567#16057567
Robert

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