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Discussion Starter #1
I got a shiny new EVGA GTX 580 OC last week and has been having a little issue since I got it. Basically I have dual 23-inch Apple Cinema Displays and the second one flickers about once every five seconds.
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Very irritating. Anyway here's what I know so far:

- Does not appear to be an issue with the monitor itself as swapping out with my old 8800 GTX and the issue is completely gone.
- Physically swapping the DVI cables attached to the card and the same monitor flickers.
- Switching primary/secondary displays in the Display control panel and the same monitor flickers.
- Refresh rate on both monitors is set to 59 Hertz, I can change it to 60 but it won't save the setting.
- Disabling the "working" monitor and the problem monitor works perfectly, hook up the 'good' monitor again and the problem monitor starts flickering again.
- Some how it fixed itself after a long gaming session (I suspect, anyway) but after a reboot the problem returned again.
- Driver version 266.58

Basically no matter what I do it's always the same monitor flicking even though there appears to be nothing wrong with it. Any ideas?
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Discussion Starter #5
Just thought I'd post that I updated today to the new 270.61 WHQL drivers and the flicker problem seems to be gone now.
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Also Apple doesn't seem to provide official Windows drivers for their old Cinema Displays, only their new ones and you must get them off a Snow Leopard install DVD, they're not available for download as far as I can tell. Thanks for the help.
 
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