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Refresh rate
By shaky I assume you mean the monitor is flickering, you can fix this by raising the refresh rate on your monitor. Ideally the native resolution and refresh rate work best, most often this is the highest refresh rate supported by your monitor, and the largest resoltuion supported by your monitor. Try changing refresh rate to 60 Hertz first, if it continues flickering, then keep raising the refresh rate until the flickering stops. (Don't forget to click apply after changfing the refresh rate to ensure the refresh rate is changed)
Often times this is the result of the monitor not supporting the resolution or refresh rate that the notebook is putting out. Look in the owner's manual or online to find the maximum resolution and refresh rate of the monitor and adjust the notebook display settings to be at or below those limits.
Any displayed image with a resolution or refresh rate greater than 480i is classified as high definition.
Too many connections.
Refresh Rate
Hertz symbolized as Hz, describes the refresh rate of TVs.
There is no proportional or inversely proportional relationship between dot pitch and refresh rate. The higher the dot pitch, the tighter packed pixels are, meaning more rows and more columns in the same space. Typically higher video resolutions can be achieved. The higher the refresh rate, the faster all rows are rescanned. Measured in Hertz, or the number of complete scans per second.
Samsung LED TV's typically have a refresh rate of 120 hertz. The refresh rate is considered a important factor of quality in high end electronic televisions.
75 Hz
Both the monitor and the video card's performance are tested by the refresh rate.
The refresh rate for the Sony KLH-W32 LCD is 120 Hz.