I have a Dell 19" LCD (E197FPf). Recently I have been having a problem with it whereby when my computer switches off it enters what I think must be its self test mode where the entire screen blinks (every three or so seconds) a different colour (always in the same sequence) Red>Green>Blue>Yellow>Light Blue>White>Black... and then it cycles through the same again.
The problem is while it is doing this the monitor freezes. You cannot bring up the menu and the light on the front stays GREEN. However it used to go to AMBER and automatically goes onto standby. Its strange I cannot even switch it off when its doing this.
I have reset the factory defaults and unplugged everything and plugged it back in, however nothing seems to have fixed this fault which only recently started happening.
Why does this do it and how can I fix it so that it goes into standby as normal ?
Thanks in advance