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My second monitor only works when I first disconnect and then reconnect the DVI cable while Windows is running. If I reboot or sleep and wake up, it stays dark. The other Monitor works fine.

I have Windows 7 64 Bit with an ATI HD 4770. Any ideas?

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Laptop or desktop? – Jay Mar 14 '10 at 1:05
Sorry, Desktop. Thought the video card would give it away. – Josef Mar 14 '10 at 19:07

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