I upgraded to Visio 2010 about two months ago. I want to change the default line weight from it's current weight of 3/4 pt. to 1/4 pt. so far, everytime I reopen my documents, I have to make the change to 1/4 pt. When I save, close and reopen the document later, the default line weight is back to 3/4 pt. How do I make the default permanent...or can it be done?