Depth cue was part of the problem although no idea how it got turned on.  The misty effect has now gone but I'm still getting the little white specs.  They appear exactly where the little red specs appear when poser calculates indirect lighting. 

Thanks

Poser Pro 2012

Windows 7 Profesional

Intel i7 2600 8MB

16GB ram DDR3

Gigabyte Geforce GTX 550 TI OC