As you have noticed and some of you have kindly warned me, there have been a good lot of video clips with resolution problems in the later posts. There is a technical limitation in my video joining process that I was not aware of, and due to my time constraints in the past weeks, I have not been able to check the uploaded videos thoroughly.I will re-upload the faulty segments according to my availability of time. The trouble is (or not trouble at all, depending on point of view...) I got a job assignment that requires frequent travel overseas and my spare time is almost nil. So, folks, hang on, let me know of further problems and, please, wait a little bit. Thanks.