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As most of you know, I work in the Information Technology (IT) department at my company. The other day I was doing some troubleshooting for one of our graphic artists. She called me and said that her monitor had started flickering. She stated that she thought that there was something wrong with the monitor and wanted it replaced. Just to get this on the table now, I was not thrilled with having to replace this specific monitor. It is one of the more expensive ones in the company.
Starting with that thought, I made a list of the possible causes in my head: cables, video card, specific monitor input (it has two), or software on the PC (that could be any range of possibilities). I begin going through some troubleshooting steps to eliminate the possible causes: I reboot the computer; I check (and replace) the cables; I check a different input on the monitor; I try the other output on the video card; check some settings... None of those fixed the problem.