Hello Arkiras. I finally got around to doing this. I did both the scene I am currently working on as well as the Grocery store. In my scene, it actually does hit 100% for the first part of the radiosity portion but then it dies down to real low utilization. The Grocery scene went to a very low utilization right away during radiosity. Now the CPU will hit mostly 100% utilization during the final lightmap gathering portion but that is not where I need the full utilization. I just do not understand what the issue could be. I am considering updating chipset drivers and possibly getting another SSD but I seriously doubt either one address this.