I have a Mozilla browser that tries to display the code of a .pps (MS-PowerPoint Slide Show) file, rather than run the application. It runs a .ppt file fine.
I go to another computer, and Mozilla on that computer runs the .pps file OK. So, I'm assuming this is a configuration issue. I went to the Mozilla 'Edit | Preferences | HelperApplications' screen and add 'pps' to the list of extensions for 'application/vnd.ms-powerpoint' filetypes to read: 'ppt pps'.
I checked filetypes under Windows, as well. This was mute, since the .pps files run fine under IE 6.0.
Any suggestions? This seems to be a Mozilla configuration issue, but I don't know where else to look that I haven't checked already.