Hello, teachers! In this very thread you can ask me any questions about presentations. I mean, of course, digital presentations. Unfortunately, I can't answer all your questions more than once a week. You can post here all your questions. Please, be more concrete about them, because sometimes it's very difficult to understand what the problem is or what information I must write here. If you want, you can download photos/print-screens in your posts. If it is necessary, I will create some new topics connected with one or more particular situations/problems/questions in order to make it clearer for you. Waiting for your questions. Added (28.09.2010, 01:41)
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Note 1. When you change the file extension, for example, from Microsoft Power Point 2003 to Microsoft Power Point 2007, it can influence in different ways: some fonts or visual effects can be changed. It doesn't mean, that you digital presentation won't work, but there will be some changings in the form of its showing, nothing more. But stil, if you change the file extension, check your presentation again in order to correct some variations of font or visual effects.