My syncmaster 710n is not working. I get the box where it ses what resolution si the right one, but the syncmaster 710v works normaly. Does that means my 710n can`t be repared anymore? Thanks

Not completely sure what you're saying. Here's what I got out of your problem:

You have a Syncmaster 710n that displays a box saying the best resolution is _____ x _____, but your Syncmaster 710v doesn't show that message.

The main question I have to ask you is whether or not you see the screen or display behind the message on the Syncmaster 710n.

In either case, I doubt that this is a hardware problem. I also highly doubt that your monitor cannot be repaired. Try the following:

1) If you see the display/screen is showing behind the message box, this is almost definitely a setting issue. You need to press the menu button on your monitor and look for an option that says something like "display resolution message" or "ideal resolution message", or something else like that. Then you need to change the setting for that option, for example if "Yes" is selected, then you need to change it to "No" or if "Enable" is selected you need to change it to "Disable".

If you have the manual for the monitor, it should make it easier to know what setting to change. If not then go here:

http://www.samsung.com/us/support/detail/supportPrdDetail.do?menu=SP01&prd_ia_cd=05020100&prd_mdl_cd=&prd_mdl_name=710N&prd_ia_sub_class_cd=P

and download the Manual that you need.

2) If nothing is being displayed behind the message, try to change the display settings of your computer. While using a different monitor, try the following: If in XP, right-click on the desktop and go to Properties, and select the tab for display settings and adjust the resolution to something compatible with your monitor (like the one it suggests you to change it to). If in Vista/7, right-click the desktop and select Screen Resolution/Display Settings and adjust it there.

Good luck. Let us know how it goes.