It has only happened to me since Anu switched the board to a new server; and it doesn't happen all the time. (There were some complaints about it at the time, too.) I never thought about time being a factor, dxb--thanks, I'll try to monitor that. I too have learned to copy first (MOST of the time), if I'm going to Preview. Even if I want to change something, I still have my codes and brackets.