A new workflow feature in OS 10.6 (Snow Leopard) is the ability to combine PowerPoint slideshows. This should be very helpful for people who want to combine slideshows created from soaMDID images or personal images with slideshows generated from ARTstor. I have created an app saved from a workflow; the link is below.
As I said in my previous post, once the zipped file is downloaded, double-click to un-zip the app and save it to your desktop or elsewhere for future use. Once you start the app, use the command key and mouse clicks to select more than one slideshow then click on the choose button. Be patient as it combines the slideshows.
NOTE: This can be used to combine ppt OR pptx files, but it will crash if you try to combine ppt AND pptx files.