Question My Samsung monitor's touch controls no longer work. What can I do?

[tom2u]

Even the power button doesn't work. Its clean of course. What could it be? What can I do? I can use it with a powerbar fine of course in the meantime.

 

[tom2u]

Its the touch controls that don't work. It doesn't have touchscreen. I haven't even knocked it recenlty. Power, menu, etc....nothing works. Luckily the brightness level is fine.