I can't find any solutions from adobe.com or from googling about this - in either CS3 or CS4, all of my presets are 720x480, and I'm unable to change them to another ratio, as the drop down menu for PAR only gives me a 4:3 or 16:9 option in 720x480, and the boxes to change my frame size are grayed out. And I'm not sure if this is a cause or somehow related to it, but I'm only able to choose DV or HDV in the capture format drop-down menu when I want to start a new project. Thanks in advance.
Under "Custom Settings"->"General"->"Editing Mode", change to "Desktop"(in CS3).That's what you're looking for?