Hi Irackley, Thank you for your help. I did the practice exam. I remembered the question 8 very well during my exam. But as I said earlier, a simple macro call with options mprint and mlogic didn't work. I suspect there might a system glitch or something. When I run all of my macro projects, the log always presented with messy contents without giving any hint how to make changes of my codes. It was such a frustrating experience. In retrospect, I do realize that I made some minor mistakes for these macro projects. But how to debug during the exam is a big concern. The most worrisome is the macro debugging project because I don't think I was wrong for the project. where and whom should I contact to find out. ... View more