Paul, you hit on my biggest complain about the dream.wincustomize.com site. Currently, there are only three dynamic dreams availables. And I posted that Stardock will probably need to think about doing something in the DeskScape product as a warning, there is currently no way to tell if a DREAM you are downloading is dynamic or video. To understand the difference: a video dream is just a video clip. Say an MPEG or WMV file, packaged in the .DREAM format. A dynamic dream is a program. It has executable code which is run on your machine, and actually renders the dream. For instance, Neil's "Ovals" dream could have the ovals changing color based on CPU load. That is why it is called a "dynamic" dream. What is shown on the screen is calculated in real-time, instead of just the next frame from a video clip. The website should call out the difference, because I, for instance, prefer dynamic dreams. And many people aren't going to be able to tell the difference from a 20 word blurb. Dynamic dreams can also use less CPU and memory than video, since they're not nearly as large. The reason Stardock should *really* warn you about dynamic dreams when you run them (again, after they release the SDK), is because it IS executing custom code on the client PC. And while I'm sure they'll do everything in they can to prevent users from posting mallicious dreams, there is a risk involved. They should also strip away almost all privileges from the process running the dream, but that's getting a bit technical for this blog. If Neil or someone from Stardock wants more info about that (if they don't already know about stripping process privs) they can send me a private message.