moniter displays: input not supported.

[flamingsora]

ever since i downgraded and tried to change the screen resolution, the screen goes black every time i start up windows XP and a box floats around the screen that says, input not supported.

[Lineback]

I am attempting to set up my acquired HP m260n computer with my existing hp moniter. The moniter does not register. It is an HP w19 moniter. Is this moniter not compatible with this computer? Am I missing something? 

[vnyga]

Hi,

you should open your own case, and offer more informations, but one tip at once:

Try to boot in safe mode, then change resolution to a working one for the monitor.

V.

[Jonathan_N]

Make sure there is not any third party hardware installed.  You can check your hardware specifications and check for software and driver updates here.  If there is any third party hardware it may need to be removed before you can make it function properly.  I may need more information.  Let me know if you still don't have any luck after looking at your product page.