1. Something happened your graphics card's drivers, you needed to re-install/update them.
2. Are you sure you've got the correct name of that file. click here
3. Go to Start > Help and Support and type in "error 711" (without the quote marks) it'll give you instructions on how to fix that.
4. See Point 1.
5. Points 1 and 4 might cure that, else download and re-install it.
6. Not sure.