|Usually LED's last for decades but occasionally you will find one that goes bad prematurely. It may be that the LED itself is going out or possible a bad solder joint if it's intermittent. If your handy with electronics or a soldering iron, you might try poking around inside to see if it might be a loose connection or a possible bad solder joint. |
I doubt any others will go out, as I said LED's usually last for decades so if you can live with it, you should still get many years out of your monitor.