Microsoft Office PowerPoint Viewer 2007

Im sure this has been asked before, but i didn't find any kind of help when i tried to search.

So i have have this PowerPoint viewer 2007 on my Windows Vista. Im trying to get .ppt files open from internet with mozilla (have tryed with IE too) - so not from outlook mail. I have tryed to just open those plus saved those to my computer and tryed open those then. My powerpoint program doesn't open at all - what's a problem? It doesn't open even if i just click and try to get that program open.

When im opening the files that powerpoit program is set to default.

Any chance someone would know what to do?

I'd suggest you install OpenOffice.org. You should not have any difficulty
opening ppt's with it.

What happens if you save a copy to the desktop and then open it?

On an XP system when I installed PowerPoint Viewer 2007 it only
associated itself with .pptx files so Windows didn't know what to do
with .ppt files. You could try associating .ppt files with the 2007
viewer (Control Panel - Programs - Default Programs), and if that
doesn't work you could try downloading and installing the 2003 version
of the viewer from
http://www.microsoft.com/downloads/d...DisplayLang=en.
I have no idea if it is Vista compatible or not, so...