You are already running the latest Intel HD Graphics driver package available for your processor. It may be that there is a bug in this driver, but my understanding is that there are no updates forthcoming (these processors are past their EOL and EOIS dates), so you are going to need to look for an alternate solution. Adding more memory is the only thing I can think of for you to try. If that doesn't work, getting a newer laptop may be your only solution if this game is that important to you.
Sorry I couldn't be more helpful,
...S
