There are a number of online solutions that will give you more options for making PowerPoint slide files. Google Docs enables you to make presentations entirely online which is especially helpful if your computer doesn't run PowerPoint. Another service, PresenterMedia, allows you to create and download unique customized templates, animated clipart, video backgrounds, etc. There's also an add-in to do it within the program on your computer. Unlike Google, it costs $59.95/year. There are lots of choices if you want do more with your presentations.