Control Panel → Display → Settings | Samsung 793DF, 793S, 797DF, 793V

voltage wire near by?

Is the voltage stable?	The screen image can appear to
	shake or vibrate at a particular time
	of day due to low supply voltage.

The screen image can also appear to shake or vibrate if there is a problem with the video card or the computer's main board.

The screen shows strange colors or just black and white.

Is the screen displaying only one color as if looking at the screen through a cellophane paper?

Have the screen colors become strange after running a program or due to a crash between applications?

Check the signal cable connection.

Make sure the video card is fully inserted in it's slot.

Reboot the computer.

The screen suddenly has become unbalanced.

Has the video card been set properly?

Have you changed the video card or the driver?

Have you adjusted the resolution or frequency on the monitor?

Set the video card by referring to the video card manual.

Adjust screen image position and size using the OSD.

Adjust the resolution and frequency of the video card.

(Refer to the Preset Timing Modes).

The screen can be unbalanced due to the cycle of the video card signals. Readjust Position by referring to the OSD.

The screen is out of focus or OSD cannot be adjusted.

The screen is partially distorted.

LED is blinking but no images on the screen.

Have you adjusted the resolution or frequency on the monitor?

Are there any magnetic products such as an adapter, speaker or a high voltage wire near the monitor?

Is the frequency properly adjusted when checking the Display Timing on the menu?

Adjust the resolution and frequency of the video card.

(Refer to the Preset Timing Modes).

Enter the OSD and perform a "Degauss".

Keep the monitor away from any magnetic products.

Adjust the frequency properly by referring to the video card manual and the Preset Timing Modes.

(The maximum frequency per resolution may differ from product to product.)

There are only 16 colors shown on the screen.

The screen colors have changed after changing the video card.

There is a message that reads "Unrecognized monitor, Plug & Play (VESA DDC) monitor found".

MagicTune™ doesn't work properly.

Have the Windows colors been set properly?

Has the video card been set properly?

Have you installed the monitor driver?

See the video card manual to see if the Plug & Play (VESA DDC) function can be supported.

Have you changed your PC or video graphic card?

Windows ME/2000/XP:

Set the colors properly at the