Samsung 920XT manual Refer to the Preset Timing Modes, and the Preset Timing Modes

	monitor blinking at 1
	second intervals?	If there is still no image, press the 'SOURCE' button.
		Then press any key on the keyboard again to activate
		the monitor and restore the image on the screen.
I cannot see the On	Have you locked the	Unlock the OSD by pressing the [
Screen Display.	On Screen Display	] button for at least 5
	(OSD) Menu to	seconds.
	prevent changes?
The screen shows	Is the screen	Check the signal cable connection.
strange colors or	displaying only one
just black and	color as if looking at	Make sure the video card is fully inserted in it's slot.
white.	the screen through a
	cellophane paper?
	Have the screen	Reboot the computer.
	colors become
	strange after
	running a program
	or due to a crash
	between
	applications?
	Has the video card	Set the video card by referring to the video card manual.
	been set properly?
The screen	Have you changed	Adjust screen image position and size using the OSD.
suddenly has	the video card or the
become	driver?
unbalanced.
	Have you adjusted	Adjust the resolution and frequency at the video card.
	the resolution or	(Refer to the Preset Timing Modes).
	frequency to the
	monitor?
	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	Have you adjusted	Adjust the resolution and frequency of the video card.
of focus or OSD	the resolution or	(Refer to the Preset Timing Modes).
cannot be adjusted.	frequency on the
	monitor?
LED is blinking but	Is the frequency	Adjust the frequency properly by
no images on the	properly adjusted	referring to the video card manual
screen.	when checking the	and the Preset Timing Modes.
	Display Timing on
	the menu?	( 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.

Have the Windows	Windows XP :
colors been set	Set the resolution at the Control Panel → Appearance
properly?	and Themes → Display → Settings.
	Windows ME/2000 :
	Set the resolution at the Control Panel → Display →
	Settings.
Has the video card	Set the video card by referring to the video card manual.
been set properly?

There is a	Have you installed	Install the monitor driver according to the Driver
message that	the monitor driver?	Installation Instructions.
reads
"Unrecognized	See the video card	Install the monitor driver according to the Driver
monitor, Plug &
	manual to see if the	Installation Instructions.
Play (VESA DDC)
	Plug & Play (VESA
monitor found".
	DDC) function can
	be supported.