I have a low end HP 6005 cpu that will not display more than 720p with my dell 30" 1600p monitor. The drivers are current and I am using a dual link cable. If I swap to a smaller 1080p monitor, the cpu swaps to 1080p automatically. What is the issue here?

What OS are you running? Windows of some sort I presume?

Yes, windows 7 ultimate.

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