1. Open the file "demoblend.wrl"

2. Right-click into the VRML world

3. Goto Settings an click Preferences...

4. Within the flag Direct3D9 Device Settings you should change the following settings:
  • set the back buffer format to "A8R8G8B8"
  • set the present interval to "DEFAULT"
5. In Performance options, set the Max vertices per draw to "2048" and the Max texture size to "2048"

6. Finally you will have to check the box Run full speed in General