Question : Problem: "No signal" error message on Acer AL1912 TFT monitor

I moved my Sony desktop computer and my Acer AL 1912 TFT monitor into a different room.
Now when I turn on the computer with the monitor switched on - instead of the monitor booting up, an error message comes up saying "No signal".  The green (on) light switches to orange (standby).  
I have tried checking the connections, using compressed air to clean them. I have turned off and plugged out the computer and the monitor. I even bought a new cable to see if that was the problem.  Nothing works.  Every time I reboot the computer this happens.
Please help!
all the best
SunnySideUp

Answer : Problem: "No signal" error message on Acer AL1912 TFT monitor

Check that there is only one video card plug at the back of the PC. There may one amongst the other connections - near USB network etc, and one further away on its own. If there are two, try the other one.

Chris B