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Odd lines on monitor
- Thread starter Dahl
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yadmonkey
macrumors 65816
I've seen this sort of thing with bad video cards. Fine when you start up, but as you use them and they get hot they start putting garbage on the screen.
Might as well test the memory. Rember has worked well for me, even finding errors that Apple Hardware Test missed.
If you use connect via VGA, you might check for bent pins.
Also try booting to the Install DVD which came with your Mac. If the garbage happens you can at least eliminate software as the culprit.
All that said, I'd make the graphics card your chief suspect.
Might as well test the memory. Rember has worked well for me, even finding errors that Apple Hardware Test missed.
If you use connect via VGA, you might check for bent pins.
Also try booting to the Install DVD which came with your Mac. If the garbage happens you can at least eliminate software as the culprit.
All that said, I'd make the graphics card your chief suspect.