After this last release I found that when I make a mass change to a group of stamps, the values zero out for that group. E.G., I select 10 lines in a collection. Then I right click and select properties. This brings up the properties dialog box that allows for mass changes. I make a change to Dealer, for example. When I hit OK, it changes the Dealer for the selected group, but it also clears out the values for each stamp. This is particularly frustrating when I have manually entered values.