(they use SSE ? AFAIK, the latest microsoft tools for building C++ have better granularity in optimization support than just vector instruction sets, but i don't think we use VS2005 to build the thing)
While this is true, optimized Builds should be written using VS2005, and then compiled using ICC 9. The real problem is not only the many spelling changes that VS versions cause, but is also the price.....
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Expect the CVS to be WIPs, after all that's what they are called CVS Builds.
Just run a "Debug" build executable, the one named -d (not -r) in Window mode, go to the Dev Tools in the Laucher and select the Flag: Run in a window. See the last line, and you should easily see the problem there.
Most of my ramdom crashes where caused by Vectors bugs....