Hi Loustry, can you tell us more?
The PC will not turn off and no signal to the monitor.
If the PC will not turn off does that mean the PC was working properly before you tried to shut down? And did the monitor work correctly?
If so, what happened then. Please step through what you did and what you saw.
How do you know the PC has not turned off if there is no display on the monitor?
Hp Pavillion media center M8300f desktop w/ vista system. Pc will not turn off, and no signal to monitor. Graphic card is integrated.What is solution. Can another card be used to overcome the problem. Thank you and have a great day.