I am a computer lab manager for a public access lab for Louisiana State University. I have used this computer/monitor combo before and everything worked fine, but recently the monitor seems to be acting up. When I boot up the computer, the monitor shows the normal startup display (the system start up, setup options if prompted to do so, and the OS startup), but when the OS is fully finished loading, the screen goes blank and stays black. Could this be the video card? Any suggestions will help. It is a Dell OptiPlex GX110, and an IBM monitor that is very old. Any more specs can be given if yall need them. i just dont know them off hand. Thanks.