This is an Adobe/Lynda.com video tutorial explaining how to use fluid grid layouts in Dreamweaver 6. It blurs out during scrolling or fast movement sections for me, which is a bit distracting, but doesn’t affect the information you want to learn.
Adobe TV has a number of excellent tutorials for learning Dreamweaver 6 online, some with downloadable files to let you work along with the tutorial. This is the only one I’ve seen that has the blurring issue.
I recommend these videos for anyone who is transitioning from versions of Dreamweaver prior to 6, since the interface in DW6 is quite different from previous versions.