No those are not related to this, the CPU itself does not support SSE4 (See Features section: http://www.cpu-world.com/CPUs/Core_2/Intel-Core%202%20Extreme%20QX6700%20HH80562PH0678M%20(BX80562QX6700).html). I’m utilizing the _mm_dp instruction in VICODynamics which requires SSE4 support. I did add a way to compile with an alternate code path for CPUs that do not support SSE4 by uncommenting a define in the physics library, I can go in-depth on how to do this if you’d like or drop me an email and I’ll get a test build to you to test.