I'm looking to get a second display for my laptop. I don't plan to try to game with both monitors running. For the most part I just want the second monitor for screen space. I do some processor intensive tasks, but video card isn't a major issue to my general computer usage.

Will having only one mid-upper range laptop graphics card actually cause any problems?

Second monitor would be 1680 X 1050 22" (same res as my laptop screen).

Thanks.
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Shouldn't be any, maybe more heat....but long as you aren't gaming in windowed mode, shoudl be fine.
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What laptop/GPU you running?

I can run 1280x800 + 1680x1050 off my 8400GS in vista aero without any ill effects, so you should be fine.
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I'm running it off of an 8600m gt.

What about playing old games in window mode, like warcraft III?
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I'm running it off of an 8600m gt.

What about playing old games in window mode, like warcraft III?

You could play in windowed mode or just in lower resolution and let the monitor either stretch the picture or just display it 1:1. All newer and at least average monitors can do this.
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