I have Vegas Movie Studio on my home computer - I have a new camera that shoots tapeless video -- I've loaded clips into my computer via USB conection in the DV-AVI format, and have dropped clips into Project Media area on Vegas. But Vegas WON'T let me drag-n-drop those clips into the timeline and edit them. It also won't let me preview the clips. Basically, I can't do anything with the clips at all, let alone build a movie and burn to DVD. What am I doing wrong? Thanks for help!!