I bought a 27 inch Samsung Space monitor about 8 months ago, and I've experienced stranged ticking noises coming from the monitor. The sound has come and gone at seemingly random periods of time, but now it's back. To describe the sound, it sounds like a clock ticking but it's two seperate ticking sounds, and one of them is slightly offset in the tempo so they are very distinguishable. It seems to fix it self when I unplug the powerbrick and plug it back in, but the sound returns after a few days. The monitor is not overheated and has been treated well in its lifetime. What could be causing this and is it fixable?