Need Help with external display...

First, let me explain what is happening. I'm using an external 19" Gateway LCD display with my Powerbook G4 1.25Ghz. Via DVI-D input. Everthing from connection to correct resolution is working fine. But the moment I change the refresh rate from 75Hz to 60Hz, the monitor starts to jitter or seems to have a nervous condition. The problem corrects itself only after a restart but I can change from 60Hz to 75Hz with no problem.
Now, from my understanding refresh rate has no bearing on LCD monitors, is this correct? and why would the monitors manual say that the native refresh rate is 60Hz. So, I'm concerned if running the monitor at 75Hz will degrade or hurt it. And once again why does the monitor image shake when going from 75Hz to 60Hz but not vice versa.
Any and all response with your experience is greatly appreciated.
David

You shouldn't need to adjust the refresh rate on an LCD display. Just leave it at it's default.

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The example I gave you, using analytic functions is a simple one.
Now, you are saying:
1. some of the employees may have two adresses?
2. if this is the case, your employee appears in the report twice?
3. you don't want his name, employee id and accounting department to appear twice?
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Hello,
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NAME TYPE VALUE
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SQL>
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SQL*Plus: Release 10.2.0.1.0 - Production on Tue Aug 30 08:56:26 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
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Copyright (c) 1982, 2005, Oracle. All rights reserved.
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Obviously it doesn't work from any remote system.
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Warning: this poses a security risk.
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Apple Discussions!
Since you have an Intel, you will need to repost in the Using DVDs and CDs with your Intel-based iMac Forum so that users using the same model computer as yourself will be able to help you.
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Hi,
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Welcome to AD!
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Hey,
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