Hi,
I have had the monitor since Oct 2013 and its been fine, recently I have noticed a flickering flashing it also makes the picture a little blurry when it is doing this. I have tried the following steps =
Reset to factory default
Turned off Monitor
Unplugged DVI-D cable.
Turn On monitor.
Flashing/flickering is noticable on the grey power save box.
Attempted self test.
The first screen the grey screen I can noticeable flickering. The remaining red blue and green are not so noticeable. Also, there is a very faint diagonal pattern on the screen, only really noticeable when viewing webpages. I tried capturing a video but it doesn't really show the problem. It seems to come and go.