You have no lights in your scene so you do not want to press the 7-key and use all lights (there are no lights).

Also, there is no culling on. It displays fine once I press the 5-key. If it is not displaying properly on your machine it is likely to be a hardware issue or driver issue as the file opens fine on my system. I opened both the .mb and .ma files and once I pressed the 5-key everthing was fine.

If you have deleted or renamed your maya folder and you open this file and press the 5-key and you are still seeing the artifacts then you most likely are looking at a hardware or driver issue.

-Rick