|I think Lyheng is calling the video card 'VGA'. |
The monitor is probably giving the power saving message because it's not getting a signal from the computer. Since it's not getting a signal, the monitor is defaulting to its power saving mode. It's not gettnig a signal from the computer because there's a problem with the computer
I believe you said you removed the video card (VGA?) from that computer and tried it in another one and it didn't work. If that's the case then the video card may be bad. Or, depending on the card, it may not be working in the second computer because the card isn't compatible with it.
Usually when a computer isn't giving a signal it's because the PSU, motherboard or both are bad. But maybe you got lucky and it's just the video card.
If you can find any other video card, even something like an old 2-meg PCI card, you can stick that in the computer and see if the monitor acts normally. You don't even have to boot into windows. Just turn on the PC and see if the normal stuff shows up on the screen.
Caramel--the devil's chocolate.