No Connection to Dell monitor

My MacBook Air will not reliably connect to my Dell flatscreen monitor. I have the adapter and have tried 3 so its not the adapter. The Dell shows "Entering Power save" and does just that. At some point, sometimes, the Connection does happen. Not always.

I've tried the same cable with a borrowed Macbook Air and there's still no signal to the Dell.
I was thinking of getting a new cable but was wondering how a faulty cable would cause the mouse lag when I have both hdmi and mdp connected.

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    Message was edited by: wachmonster

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    Bad adapter?
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  • HT3014 my mac has the VGA port and I need a newer monitor for it. what do I use that will connect it. I had a new dell monitor and none of the things that dell said worked. so I am going to get a mac monitor for a second unit.

    my mac has the VGA port and I need a newer monitor for it. what do I use that will connect it. I had a new dell monitor and none of the things that dell said worked. so I am going to get a mac monitor for a second unit.
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    That should still work. You only need a Thunderbolt cable for hooking to Thunderbolt capable devices, I think.
    More info here http://docs.info.apple.com/article.html?path=Mac/10.7/en/mh35952.html
    Message was edited by: Dave B.

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