Another problem I've found....curoius as to other peoiples experience...
The problem is with my Nanao 9070U monitor. It usually has a fairly crisp display,
but lately I've noticed quite a bit of flicker and wavering of the screen. At first
I though that the monitor was going to monitor heaven, but then I thought to measure
the input power levels.
What I discovered is that the input power to my apartment varies between around 112 V
and 120V, depending on what other people have turned on, refrigerators, etc. This
is normal, but the Nanao problem follows the voltage. When the voltage drops much below120 V, the flicering starts. Around 112 it gets really annoying, as the screen is wavering as much as an1/8 of an inch. For a $1000 monitor, this is quite disturbing!