Citaat:

I'm pretty sure the screen saver app in Windows XP does exactly that if you set it up correctly. I'm on a Win7 lappy right now so I can't check easily.




The screensaver will do that. Unfortunately the screensaver doesn't work when you are using the computer...

I don't think you can have one program running your slide-show and outputting the images to a beamer and run your DJ-software at the same time without having that sent to the beamer also.

It can be done with dedicated DJ-software like Numark Cue. I know from experience that you can select video-clips and send them to a beamer while you have your DJ-tools at the same time. You can make video cross-over effects and more. I don't know if the program can handle slide-shows.
You can get a 20-day demo-version for free.

What DJ-software are you using at the moment? Perhaps you can do it all with your current software?