It may not be in your program or it may be called something else but whatever it was check the photoshop thread on here and Millie Mae and I were discussing it in there. There is something which makes it so when you resize from the corners it all stays in proportion. It possibly is still called constrain proportions, I have no idea. (Once it is checked I do not pay attention to it either as it stays checked so I do not need to worry about it ).