Hi ritchiesbabe. I hope I'm not too late, and you check back here again! I have another suggestion for you to try.
When you first launch the game, a box appears on your desktop. The box has some buttons on it. One of them is "Configuration" (or something similar). Click it. You'll see the choice to play the game in Hardware or Software rendering mode. The default choice is Hardware. It's not working for you. Change the bullet to SOFTWARE mode. Then try to launch the game again.
I hope this helps!