We came across this issue in the lecture this afternoon. If you are using a machine which lacks really high performance graphics, perhaps because it has an on-board graphics display, you might get an error when you try to run an XNA program on it, because the graphics hardware can’t keep up.
If this happens you can try changing the Game Profile in the project settings for the game. If you set them to “Reach” this will reduce the demands that are made on the machine, and might make the game work.
It worked for me in the lecture….