You may see a border around your monitor screen after first installing it. That may happen if the graphics card did not immediately recognize the full monitor specifications.
To resolve the problem you can simply turn off the monitor and turn it right back on. If the issue persists you can lower the resolution to 1024X768 and then set it back to 1920X1080.
If after those steps have been taken but the problem is still there, you should verify that your graphics card supports 1920X1080resolution and reinstall the graphics adapter drivers.
Keywords: border, 230UW.