My SynchMaster 171S is not displaying as it should. In the last few days, the display has become hyper-saturated and nothing I have done has fixed the problem, neither in Preferences (Mac OSX 10.4.11) nor using hardware settings. There does not appear to BE an OSX 10.4.11 profile for this monitor available on your site (or anywhere else, for that matter) and the Mac OS does not show it, either. Help!! Lee Darrow, C.H.

SOURCE: Black screen

the monitor is dead...give up and buy another non-samsung product 

SOURCE: restart computer and monitor says not optimal display

If you are indicating you have like 5 or 10 frames stacked across the screen causing the can't see problem, here's the "what-to-do". Reboot the computer and use "F-8" to get it started in safe mode. Make the necessary corrections the the display settings. Save and reboot. That should restore so that you can see to optimize the settings once back in normal mode.
Let me know if I missed it.

SOURCE: Facebook display problem Samsung SynchMaster 713BM monitor

it must be the drivers your using for the monitor. Have you checked the pins connector are all straight. as bent pins will cause this.

http://www.howtodrivers.com/model502115.html

webpage link for drivers

AndystUK
Vote me happy

SOURCE: 17'' samsung synchmaster 794MG

hit your MONITOR lightly on left side or right side or on top & then observe ..........you will get normal picture or it comes & again it goes....if it is happening like that then following is the situation..........after 4 or 5 yrs in some monitors on main board ( also on CRT circuit board ) at some soldering joints crack develops....then due to loose contact picture becomes small in size or abnormal width,etc ...........when we hit that lightly then those loose contacts joins temporarly & again picture appears for some time............so solution is ......monitor main board & CRT circuit board should be observed carefully & most of the joints should be re-soldered.......only a good service engineer can do that........even after hitting monitor lightly if there is no response then main board has to be checked completely........in your case iam sure it is loose connection problem.........joints should be re - soldered ...100% it works again ................this problem cannot be solved by user unless user has idea about components( resisitors, transisitors, diodes,...etc) , have soldering iron , multimeter & other tools....................so contact good monitor service engineer .............iam from bangalore - 09986222774 - [email protected] ( computers, laptop, printers, etc )..............