I don't know what's going on but the bright red dots sound familiar with the indirect lighting feature.  If you are are rendering with indirect lighting then wait a little more for the complete render to go through. It's like two stages. It will calculate the lighting and show the red dots then it will give you a completed rendered that won't have the dots. Other than this I don't know what it could be.

If you don't want the indirect lighting feature then you have to uncheck it in the render settings.

Frederick

Poser By Design