When i plugged in my samsung fx2490hd moniter it doesnt display correctly...the borders are not right as it is extended more than usaul...when i look on my adapter staus it says its a generic moniter :( i dont know? any suggestions?

It sounds like you are in the Store Demo Mode. Turn it off and see if that fixes it.

https://www.manualslib.com/manual/145519/Samsung-Syncmaster-Fx2490hd.html?page=27

Reset

Reset Samsung FX2490HD LS24F9DSM to factory state

monitorsfaq.com https://www.monitorsfaq.com > Factory reset > Samsung
How to restore or reset Samsung FX2490HD LS24F9DSM. Reset to its factory state Samsung FX2490HD . How to hard reset monitor. Clear all settings or format.

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Thomas Motley,
Your monitor is displaying like it is because the graphics card refresh rate has changed. Check that the display driver is correct for your graphics card and that you are not using the generic windows driver. If the driver is correct then look in desktop properties, settings, advanced, monitor and check that the refresh rate is correct for you monitor.

Thank You,
Dell-Jesse L
Dell Social Media and Communities

plug your monitor then right click on desktop, go down to screen rez in the menu.
click on the detect tab, click on monitor 2 so it highlights then in the multiple displays drop down box select (Extend these displays)

if it doesn't pick the monitor up at all, then your graphic drivers are missing.
go to control panel,in the top right change the icon size to "large icons" then select (device manager) their should not be any yellow triangles with " ! " in them, if their is right click on them & up date driver, select the top option " search internet for driver".
if no joy then go to .......dell.com & put your service tag in off the sticker on the base of the machine.
good look.
www.t-comtechcomputers.com

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User manual:
http://www.samsung.com/us/support/downloads/LS24F9NSM/ZA

Wall mount from SAMSUNG : P/N
WMN-2490
See page 15 of the user manual for details, it is NOT standard VESA mounting.

You need to make your new display active. You can do it by following proper instructions depending on the video adapter included with your notebook:

On models with the Intel Graphics Media Accelerator
1 Right-click on the desktop and select Personalize.
2 Click Display Settings.
3 Follow the on-screen instructions to change the settings.

On models with the NVIDIA or ATI video controller
1 Click Start and Control Panel.
2 Click Adjust screen resolution under Appearance and Personalization.
3 Right-click the number 2 monitor and select Attached.
4 Click OK.
At the confirmation prompt, click Yes.

this problem can occur cause of two cases 1 problem with LCD panel (replacement can solve) 2 power failure in side moniter (repairing moniter can solve)
thanx PLZ vote

http://office.microsoft.com/en-us/excel/HP030640461033.aspx

right click mouse
select Graphic Properties
select Display Settings
select Display Expansion
select Full Screen (No Border)

Monitor Help CH000315, Black borders on side of screen. CH000316, Dead or black pixels. CH000403, Macintosh and/or PC monitor compatibility.
Black borders on side of screen. Additional information about what causes black borders on computer displays.

Good Luck, Please dont for get to Vote/Thank You.