>It's not obvious to me at first glance, but it should be easy to make >a test case that fits comfortably in <50 lines of C++. If you can >post that I'm sure I can answer your question. I will sure try, but so far I have not managed to reproduce it in small test case :-( Thanks! -- Alexey Goldin <Alexey.Goldin at jpl.nasa.gov>