I’m sharing this story because it may be useful for someone else, as well.
This morning I found out that my monitor (a Packard Bell Maestro 220wdv) was not working anymore. After messing with the cables for a while, it turned out that I wasn’t able to connect anything using DVI, while the two VGA ports were perfectly functional.
I was ready to buy a new DVI cable (hoping that it was not the monitor’s fault) when I found out this forum thread, which stated:
Alright, I had a similar problem to this on a Viewsonic 20″ LCD with exactly the same symptoms you’re describing.
Try this if you haven’t already, UNPLUG THE MONITOR FROM THE WALL.
LEAVE UNPLUGGED FOR 5mins and PLUG IT BACK IN AT THE WALL.
Power up and I hope you have the same luck I had about a year ago.
To make a long story short, I unplugged the monitor’s power cable and plugged it back a few minutes later, and it started to work again.
Technology is like magic, sometimes…