Change the refresh rate to a frequency actually supported by your monitor.
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)
Refresh Rate
Hertz symbolized as Hz, describes the refresh rate of TVs.
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.
Its not the drivers that ensure the refresh rate: they simply allow you to change the refresh rate which is dependant on the supported Hz of the monitor, you will find that most current PC monitors support between 50-80Hz but with the advent of 3D gaming/TV etc.... which requires 120Hz, this is quickly changing
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.
The refresh rate and response time are set or changed by using the Display applet in the Control Panel.
monitors can only handle a certain refresh rate. the monitors cababilities will be in the handbook.
Refresh data