This is a fairly late reply as I was searching through the forum for another purpose when I came across your problem. Have you adjusted the segment masses of you model following RRA? The COM adjustment is made automatically but the segment mass adjustments are not and need to be done manually (as fa...

As an addition to this conversation, I had the same error when installing on my new machine running windows 7, the problem was resolved when I installed vcredist_x86.exe which can be found in Tim Dorn's OpenSim Utilities.

Hope that helps

David