I opened a table design view in SQL srever 2005, I added a column to the table, and then clicked the X button, and been promted by a dialog box for saving the changes, and I clciked Yes. Then a confirm dialog asked me if I save on other three tables too. I only added a column in one table, why does it ask me if I save on four tables? Is there any internal setting stuff causing it? Please the attached file.