Dead cells or Dead Pixels are pixels that will stay the same colour...
For example a white display displaying an ALL white background. A dead pixel maybe red so within the white background you will see a red dot.
All TFT are proun to them. I have two and they do not effect my display. You will only really see them if you go up close and look for them.
Your graphics would fit,but you would have to use the VGA input. There is another input called DVI which helps with the display. Just connect the card up an away you go.