After powering up my monitor, It can stay on anywhere from 2 seconds to 1/2 an hour..it flashes between digital/analog 2-3 times then goes black. the computer stays powered up throughout until i have to push the power button off. No matter how many times i reboot I get the same problem.. Will having a DVI cord for the monitor help this problem at all?? Thank You.
Graphics card may be going bad - If Not connected to on board port, you might try removing, dusting and reseating the card. Or, try the monitor on another computer, as it may be the fault.