In most of the cases crashes (esp. of the whole PC) are caused by older or incompatible graphic adapters.
You can try switching to Direct X:
- In the login window click on 'Options'
- In the box 'Renderer Type' click on 'Direct X', then click on 'Save'
- Try starting the software again.
Additionally we strongly recommend that you download and install the latest graphics drivers (including OpenGL support! ) for your graphics adapter. You find some links for graphic drivers
here.