First of all, what version of the program are you using? I realize with recent changes done by SourceForge, the 1.0 release is the file being linked to when you click "Download Now". But this is not the newest file, 2.1.0 is the newest. Click "View All Files" and make sure you have the newest version. Let me know if the problem persists. I am looking into it now.
When a user downloads a ppt file from a web site using version 2.1 of this software PowerPoint refuses to open it giving this message:
The selected file does not appear to be a valid Microsoft Office PowerPoint file. It might be another kind of Microsoft Office System file or a file created by using a different program.
Try double-clicking the file in Windows Explorer to see if another...