I have the smallest form factor Optiplex 755. Regardless of the Monitor I use the screen goes black when I hit ctrl alt del. I am able to exit the screen when I put in my password an it will go back to normal. While this isn't the dreaded black screen of death, It is very annoying. I tried updating all of the drivers in device manager but it said they were all up to date. I would appreciate any insight because I don't know how to solve this problem. Thanks alot.