My brothers PC doesn't seem to be sending a signal from the graphics card VGA port to his CRT monitor. The USB ports in all of the computer don't work because the optical mouse was not lighting up so I got a USB-PS2 convertor and the mouse now lights up, but the monitor stays in the standby mode. If I take out the cable to the VGA port on the graphics card then the monitor says no signal is being recieved but once i plug it in the monitor just goes black and onto the orange light (standby). Any ideas on what the problem is? Thanks